The recipe was SO simple!
food coloring
We put it in old muffin tins so we could make lots of different colors and bought cheap paint brushes at Walmart because those foam ones would have been eaten by the driveway very quickly.
We painted on paper, rocks, the driveway, our cheeks and legs. You name it! They both loved it and we WILL be doing it again. You have to keep mixing it up or the cornstarch settles to the bottom. The blue also stained their skin at first, but all the colors came off with just a simple bath.
Try it out, its fun!!!