Amazon.com: Plastic PVC Foam Board Sheet - Cut to Size - 12" X 24" - White - 10MM Thickness - Used in Interior Partitions, Advertising, Toilet Cubicles, Modeling & Photo Mounting -
Plastic Panels Sheets
Amazon.com: PVC Board Building Sand Table Plastic Model Material, DIY Handmade High Density Rigid Foam Board, 1pcs (Color : White 1.2 * 30 * 40cm 1pcs) : Toys & Games
1/2 in. x 4 ft. x 8 ft. White PVC Sheet Panel 190360 - The Home Depot