Get whatever colors you want to make and some white Elmer's glue
You have to dump our some of the glue to make it easy to mix. I dump it about to the top of the triangle with the label "Elmer's" in it.
(You need to shake like crazy to get it mixed, get ready for an arm workout)
Finished now you have some fun, cheap paints for your kids. The fun part is when the paint dries it is raised a little. Your kids will love painting and drawing things with these. Don't forget to follow my blog.