Kool-aid paint takes home the “favorite” award with my 3rd grade students. Not only are the colors really bright, but the paint smells super yummy too! I also love that it’s non-toxic just in case some of the paint ends up in a mouth! You’ll only need corn starch, cold water, unflavored gelatin packs, and a variety of Kool-Aid colors/flavors. Now that is some KOOL paint!! I buy baby mason jars at Michael’s.