Amazon.com: Black Acrylic Sheet, Plexiglass Sheets 1/4 inch Thick -5 inch x 7 inch Inches with Protective Paper, Cast Acrylic Panel, Black Plexiglass Board, Acrylic Glass Sheet (1/4 inch x 5 inch
Amazon.com: DARENYI Black ABS Plastic Sheet, 12" x 16" 1/8" Thick (3mm), Flexible Than Plexiglass Sheet, Moldable Than Acrylic Sheet, DIY Material for Home Decor, Craft Projects (2 Pack, Smooth & Textured