This is another simple yet very effective project. You can get the children to create their own small tape painting or a large, collaborative one like I have done here. I usually do this at the end of a colour studies unit so thew pupils have a better understanding of colour and how to blend and make successful gradients. Simply get plenty of thin masking tape or washi tape and section off a piece of watercolour paper. Smooth them done and get painting. Make sure they go over the tape so that when they peel it all off at the end they are left with some crisp sections of colour.