Halloween Rigid Costume Support What Is A Clear, Somewhat Rigid Plastic Material To Use For My Halloween Costume?

What is a clear, somewhat rigid plastic material to use for my halloween costume? - halloween rigid costume support

My idea of dressing room is a lava lamp. I use a kind of transparent plastic for what would be the glass of a lava lamp. It must be strong, but should hold its shape. What can I use for the product and where he found? I imagined a clear acetate film, but I do not know where to find them. Any suggstions would be greatly appreciated.