Amazon.com: Mega Format Expanded PVC Plastic Sheets - 14" X 14" Rigid White Sheet for Crafts, Signage, & Displays - Sintra, Celtec PVC Board - Waterproof for Outdoors Use - 1/4" Thick -
Amazon.com: Outwater Plastic H Channel Fits Material 1/16 Inch Thick White Rigid PVC Divider Moulding 46 Inch Length (Pack of 2) : Tools & Home Improvement
Amazon.com: Expanded PVC Sheet – Lightweight Rigid Foam – 25mm (1-Inch) – 12 x 24 inches – White – Ideal for Signage, Displays, and Digital/Screen Printing : Industrial & Scientific
Amazon.com: Expanded PVC Sheet – Lightweight Rigid Foam – 25mm (1-Inch) – 12 x 24 inches – White – Ideal for Signage, Displays, and Digital/Screen Printing : Industrial & Scientific