Amazon.com: Superior Graphic Supplies PETG Clear Plastic Sheets (8.5 Inches X 11 Inches)| .020 Mil - Clear 10 Sheets Thermoforming UV Protection : Industrial & Scientific
Plastic Sheet 12x12 .020" Clear 4pc - Walmart.com
Plastic Sheet 16x20 .020" Clear | Michaels
12"X12"x .020" Super Thin Flex Clear Plastic PETG – ZLazr
Amazon.com: Grafix Ultra Clear .020 Plastic, Durable and Archival Film, Perfect for DIY Crafts, Stencils, Journals, Cards, 3D Embellishments, and More, 12 x 12
Plexiglass 0.020 Thick 12x16" | Gwartzman's – Gwartzman's Art Supplies