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Museum Store
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The Museum Store features handmade and unique gift items. Find one-of-a-kind gifts made in Moses Lake, historic and special interest book titles, and a selection of rocks, gems and minerals dedicated to museum founder and original "rock hound" Adam H. East. 

Museum Store Consignment
Interested in selling your fine arts and crafts at the Museum Store? The Museum charges a 30% commission on all sales. All financials are paid through the City of Moses Lake. Please call to make an appointment.

For More Information - Call (509)764-3830  

The Rusty Mammoth
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Curate your home on a budget and support the Moses Lake Museum & Art Center. Shop the museum’s annual summer Benefit Art & Collectible Sale, and find select items in the Museum Store year round. Thanks to our generous donors we are able to take what one person no longer needs or wants and turn it into someone else's incredible treasure or bargain.  

Donors to the program can take pride in knowing that their once beloved treasures will go to a new home, and benefit museum's educational programs, collections and exhibits. 

We are happy to accept donations year round. Gently used good quality items are always welcomed and appreciated. We prefer items that fit into these categories: Art, Collectibles, Antiques, Ceramics, Glassware, Books, Art Supplies, Textiles, Home Decor, and Jewelry.  To donate to The Rusty Mammoth please contact our staff for a donation receipt at or (509) 764-3830.

  • The Rusty Mammoth sale does not provide appraisals or evaluations of donations for income tax purposes.
  • Subject to current IRS and tax regulations, items donated to the Moses Lake Museum & Art Center’s benefit art and collectible sale are tax deductible for income tax purposes at their present fair market value. The Internal Revenue Code places the responsibility for estimating fair market value of the property received upon the donor. The Moses Lake Museum & Art Center’s Federal Tax ID Number is 91-6007721.
  • Tax benefits for charitable contributions are available only to taxpayers who itemize deductions. Please refer to IRS publication 561.
  • All donations are final. Please carefully check and consider all donations.