Amazon.com: 24" x 36" x 3 MM Thick Orange (2119) Cast Acrylic Plexiglass Plastic Sheet - SIBE-R Plastic Supply : Industrial & Scientific
Amazon.com: 4"x 6" Acrylic Sheet Plastic - 0.118"/3mm Thick, Gartful Clear Plexiglass Panels with Protective Film, Transparent Glass Blanks Board for Signs, DIY Display Projects, Art Craft, Home Decor, Pack of 4 :
Amazon.com: Clear Plexiglass Acrylic Sheet 12x12 Inches, 3mm (1/8 inch Thickness) Unbreakable and Lightweight Substitute for Glasses, Great Use for Sneeze Guard, Shield, Greenhouse, Poster Frames : Industrial & Scientific