Here is one of my buffalo postcards. Charcoal on watercolor paper postcard.
Mail Art Call:
Please make Buffalo themed mail art. Any size, any materials. Please write on your artwork anywhere an unambiguous message such as PROTECT THE YELLOWSTONE WILD BUFFALO
Send mail art to:
Yellowstone National Park
Superintendent Suzanne Lewis
PO Box 168
Yellowstone National Park, WY 82190
Secretary of the Interior Ken Salazar
Department of the Interior
1849 C Street, N.W.
Washington DC 20240