------------------------
                                                               OMB APPROVAL
                                                        ------------------------
                                                        OMB Number: 3235-0145
                                                        Expires: October 31,2002
                                                        Estimated average
                                                        burden hours per
                                                        response.... 14.90
                                                        ------------------------

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934

                          (Amendment No. ___________) *


                                  MOD PAC CORP.
--------------------------------------------------------------------------------
                                (Name of Issuer)


                           Common Stock, par value $.01
--------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                   607495207
                         -------------------------------
                                 (CUSIP Number)


                                December 31, 2004
--------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)


Check the  appropriate box to designate the rule pursuant to which this Schedule
is filed:

    |_|    Rule 13d-1 (b)

    |X|    Rule 13d-1(c)

    |_|    Rule 13d-1(d)


*    The  remainder  of this  cover  page  shall be filled  out for a  reporting
     person's  initial  filing on this form with respect to the subject class of
     securities,  and for any subsequent amendment containing  information which
     would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the ACT
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).




Potential persons who are to respond to the collection of information  contained
in this form are not  required to respond  unless the form  displays a currently
valid OMB control number.

SEC 1745 (3-98)                 Page 1 of 7 pages




CUSIP No.     607495207
--------------------------------------------------------------------------------
       1. Names of Reporting Persons.            John H. Lewis
          I.R.S. Identification Nos. of above persons (entities only).
--------------------------------------------------------------------------------
       2. Check the Appropriate Box if a Member of a Group (See Instructions)
          (a) |_|
          (b) |X|
--------------------------------------------------------------------------------
       3. SEC Use Only
--------------------------------------------------------------------------------
       4. Citizenship or Place of Organization   United States
--------------------------------------------------------------------------------
Number of        5. Sole Voting Power         195,359
Shares Bene-     ---------------------------------------------------------------
ficially owned   6. Shared Voting Power
by Each          ---------------------------------------------------------------
Reporting        7. Sole Dispositive Power    195,359
Person With:     ---------------------------------------------------------------
                 8. Shared Dispositive Power
--------------------------------------------------------------------------------
       9. Aggregate Amount Beneficially Owned by Each Reporting Person   195,359

      10. Check if the Aggregate Amount in Row (11) Excludes Certain
          Shares (See Instructions)   |_|

      11. Percent of Class Represented by Amount in Row (9)        6.52%
--------------------------------------------------------------------------------
      12. Type of Reporting Person (See Instructions)  IN
--------------------------------------------------------------------------------




                                Page 2 of 7 pages


CUSIP No.     607495207
--------------------------------------------------------------------------------
       1. Names of Reporting Persons.      Osmium Partners, LLC
          I.R.S. Identification Nos. of above persons (entities only).
--------------------------------------------------------------------------------
       2. Check the Appropriate Box if a Member of a Group (See Instructions)
          (a) |_|
          (b) |X|
--------------------------------------------------------------------------------
       3. SEC Use Only
--------------------------------------------------------------------------------
       4. Citizenship or Place of Organization   United States
--------------------------------------------------------------------------------
Number of        5. Sole Voting Power         195,359
Shares Bene-     ---------------------------------------------------------------
ficially owned   6. Shared Voting Power             0
by Each          ---------------------------------------------------------------
Reporting        7. Sole Dispositive Power    195,359
Person With:     ---------------------------------------------------------------
                 8. Shared Dispositive Power        0
--------------------------------------------------------------------------------
       9. Aggregate Amount Beneficially Owned by Each Reporting Person   195,359

      10. Check if the Aggregate Amount in Row (11) Excludes Certain
          Shares (See Instructions)   |_|

      11. Percent of Class Represented by Amount in Row (9)        6.52%
--------------------------------------------------------------------------------
      12. Type of Reporting Person (See Instructions)    OO
--------------------------------------------------------------------------------




                                Page 3 of 7 pages


CUSIP No.     607495207
--------------------------------------------------------------------------------

       1. Names of Reporting Persons.      Osmium Capital, LP
          I.R.S. Identification Nos. of above persons (entities only).
--------------------------------------------------------------------------------
       2. Check the Appropriate Box if a Member of a Group (See Instructions)
          (a) |_|
          (b) |X|
--------------------------------------------------------------------------------
       3. SEC Use Only
--------------------------------------------------------------------------------
       4. Citizenship or Place of Organization    Delaware
--------------------------------------------------------------------------------
Number of        5. Sole Voting Power         193,186
Shares Bene-     ---------------------------------------------------------------
ficially owned   6. Shared Voting Power             0
by Each          ---------------------------------------------------------------
Reporting        7. Sole Dispositive Power    193,186
Person With:     ---------------------------------------------------------------
                 8. Shared Dispositive Power        0
--------------------------------------------------------------------------------
       9. Aggregate Amount Beneficially Owned by Each Reporting Person   193,186

      10. Check if the Aggregate Amount in Row (11) Excludes Certain
          Shares (See Instructions)   |_|

      11. Percent of Class Represented by Amount in Row (9)        6.45%
--------------------------------------------------------------------------------
      12. Type of Reporting Person (See Instructions)    PN
--------------------------------------------------------------------------------




                                Page 4 of 7 pages




Item 1.

(a)  The name of the issuer is Mod Pac Corp. (the "Issuer").

(b)  The  principal  executive  office of the Issuer is located at 1801  Elmwood
     Avenue, Buffalo, New York 14207.

Item 2.

(a)  The names of the person filing this statement (the  "Statement") is John H.
     Lewis.  Mr.  Lewis is the  controlling  member of Osmium  Partners,  LLC, a
     Delaware limited liability company ("Osmium  Partners") which serves as the
     general partner of Osmium Capital,  LP, a Delaware limited partnership (the
     "Fund") (collectively, the "Filers").

(b)  The Principal  Business  Office of the Filers is 388 Market  Street,  Suite
     920, San Francisco,  California 94111.

(c)  For citizenship information see item 4 of the cover sheet of each Filer.

(d)  This Statement relates to the Common Stock of the Issuer.

(e)  The CUSIP Number of the common stock of the Issuer is 607495207.

Item 3. If this statement is filed pursuant to ss. 240.13d-1(b), or 240.13d-2(b
        or (c), check whether the person filing is a:

(a)  Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b)  Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).


(c)  Insurance  company as defined  in  section  3(a)(19)  of the Act (15 U.S.C.
     78c).

(d)  Investment company registered under section 8 of the Investment Company Act
     of 1940 (15 U.S.C. 80a-8).

(e)  An investment adviser in accordance with ss. 240.13d-1(b)(1)(ii)(E);

(f)  An  employee   benefit  plan  or   endowment   fund  in   accordance   with
     ss. 240.13d-1(b)(1)(ii)(F);

(g)  A  parent   holding   company  or  control   person  in   accordance   with
     ss. 240.13d-1(b)(1)(ii)(G);

(h)  A savings  associations  as defined in Section 3(b) of the Federal  Deposit
     Insurance Act (12 U.S.C. 1813);

(i)  A church plan that is excluded from the definition of an investment company
     under  section  3(c)(14) of the  Investment  Company Act of 1940 (15 U.S.C.
     80a-3);

(j)  Group, in accordance with ss. 240.13d-1(b)(1)(ii)(J);

Item 4. Ownership.

See Items 5-9 and 11 on the cover page for each filer.

                                ----------------

Instruction.  For computations  regarding  securities which represent a right to
acquire an underlying security see ss. 240.13d-3(d)(1).


                                Page 5 of 7 pages




Item 5. Ownership of Five Percent or Less of a Class

If this  statement  is being filed to report the fact that as of the date hereof
the  reporting  person has ceased to be the  beneficial  owner of more than five
percent of the class of securities, check the following |_|.

Instruction: Dissolution of a group requires a response to this item.

Item 6. Ownership of More than Five Percent on Behalf of Another Person.

If any other person is known to have the right to receive or the power to direct
the  receipt  of  dividends  from,  or the  proceeds  from  the  sale  of,  such
securities,  a statement  to that effect  should be included in response to this
item and, if such interest relates to more than five percent of the class,  such
person  should be  identified.  A listing of the  shareholders  of an investment
company registered under the Investment Company Act of 1940 or the beneficiaries
of employee benefit plan, pension fund or endowment fund is not required.

Item 7.  Identification  and Classification of the Subsidiary Which Acquired the
         Security Being Reported on By the Parent Holding Company.

If a parent holding company or control person has filed this schedule,  pursuant
to Rule  13d-1(b)(ii)(G),  so  indicate  under  Item 3(g) and  attach an exhibit
stating the identity and the Item 3 classification  of the relevant  subsidiary.
If a parent holding  company or control person has filed this schedule  pursuant
to Rule 13d-1(c) or Rule 13d-1(d),  attach an exhibit stating the identification
of the relevant subsidiary.

John H. Lewis is a manager and member of Osmium Partners. Osmium Partners is the
general  partner and control  person of the Fund and manages other accounts on a
discretionary  basis.  The Fund is a private  investment  vehicle formed for the
purpose of investing and trading in a wide variety of  securities  and financial
instruments.  The Fund and individual  account  holders  directly own the common
shares reported in this Statement.                          |_| EXHIBIT ATTACHED

Item 8. Identification and Classification of Members of the Group

If a group has filed  this  schedule  pursuant  to Rule  13d-1(b)(1)(ii)(J),  so
indicate  under Item 3(j) and attach an exhibit  stating the identity and Item 3
classification  of each member of the group.  If a group has filed this schedule
pursuant  to Rule  13d-1(c)  or Rule  13d-1(d),  attach an exhibit  stating  the
identity of each member of the group.

Item 9. Notice of Dissolution of Group

Notice of dissolution of a group may be furnished as an exhibit stating the date
of the  dissolution and that all further filings with respect to transactions in
the security reported on will be filed, if required, by members of the group, in
their individual capacity. See Item 5.                      |_| EXHIBIT ATTACHED

Item 10. Certification

(a)  The  following  certification  shall be  included  if the  statement  filed
     pursuant to ss. 240.13d-1(b):

     By signing  below I certify  that,  to the best of my knowledge and belief,
     the securities referred to above were acquired and are held in the ordinary
     course of business  and were not  acquired and are not held for the purpose
     of or with the effect of changing or influencing  the control of the issuer
     of the securities and were not acquired and are not held in connection with
     or as a participant in any transaction having that purpose or effect.

     The  following  certification  shall be  included  if the  statement  filed
     pursuant to ss. 240.13d-1(c):

(b)  By signing  below I certify  that,  to the best of my knowledge and belief,
     the securities referred to above were not acquired and are not held for the
     purpose of or with the effect of changing or influencing the control of the
     issuer  of the  securities  and  were  not  acquired  and are  not  held in
     connection with or as a participant in any transaction  having that purpose
     or effect.



                                Page 6 of 7 pages



                                    SIGNATURE

     After  reasonable  inquiry and to the best of my  knowledge  and belief,  I
certify that the information  set forth in this statement is true,  complete and
correct.

Dated:    February 9, 2005



    Osmium Capital, LP

    By:  Osmium Partners, LLC,
         General Partner

    By: /s/ John H. Lewis
       -----------------------
    John H. Lewis,
    Managing Member


    OSMIUM PARTNERS, LLC

    By: /s/ John H. Lewis
       -----------------------
    John H. Lewis,
    Managing Member


       /s/ John H. Lewis
       -----------------------
           John H. Lewis




The  original  statement  shall be signed by each  person  on whose  behalf  the
statement is filed or his authorized representative.  If the statement is signed
on behalf of a person by his authorized  representative  other than an executive
officer  or   general   partner  of  the   filing   person,   evidence   of  the
representative's  authority to sign on behalf of such person shall be filed with
the  statement,  provided,  however,  that a power of attorney  for this purpose
which is already on file with the Commission may be  incorporated  by reference.
The name and any title of each person who signs the statement  shall be typed or
printed beneath his signature.

Note:  Schedules  filed in paper format shall include a signed original and five
copies of the  schedule,  including all  exhibits.  See ss.  240.13d-7 for other
parties for whom copies are to be sent.


     Attention:  Intentional  misstatements  or  omissions  of  fact  constitute
     Federal criminal violations (See 18 U.S.C. 1001)



                                Page 7 of 7 pages