Homemade Face Paint Directions: Start by mixing together equal parts corn starch and face lotion. Add 1/4 tsp vegetable oil, You want it smooth without being watery. Now put a spoonful in a small container and add a pea-sized amount of washable paint. You can also swap for a few drops of natural food coloring or homemade dyes. Repeat until you've got a set of face paint. For a bit of shimmer, sprinkle glitter eye shadow into containers or dust over finished face paint for allover glitter.