Corrugated plastic, also known as Coroplast. It can be easier to source than acrylic sheets, and is certainly much easier to work with. Any sign shop or plastics supplier likely has it on hand in ...

Ezra: Let's make our own corrugated ... PVA glue to a thin sheet of paperboard or cardboard and adding more layers. Another way to laminate is using clear, sticky back plastic or laminating ...