For this project you need a sheet of plastic. I used a transparent plastic cover from a toy box. First, my daughter covered it with a thick layer of paint and spread the paint with her hands. Then, she turned the sheet over and stamped it on a piece of paper. I washed the plastic sheet and gave it back to her to cover with paint of a different color. She stamped it on the same piece of paper. If you repeat this process a few times you will have a cool textured painting.