DIY Shrinky Dinks w/ #6 plastic (polystyrene). Cut into flat sheet. Draw or write your desired image or text on your plastic canvas using permanent markers. Will shrink to 1/3 size-Heat oven to 350°-cover baking sheet with foil-Bake 3-3.5 min. Art will curl up at first but then flatten.remove from oven. Plyable for ~10seconds-cut drill when cool.