Can Of Universal Enamel Thinner 8 Fl Oz (1/2 Pint) - Walmart.com
Testors 8824 Airbrush Thinner 8 oz – Burbank's House of Hobbies
Amazon.com: U.S. Art Supply 4-Ounce Pint Airbrush Thinner for Reducing Airbrush Paint for All Acrylic Paints - Extender Base, Reducer to Thin Colors Improve Flow - Works for Thinning Acrylic Pouring Paint :