I got this idea straight off of Frugal Family Fun. If you have not checked out her blog, you should! She is a genius of cost vs fun. I wanted to test drive this craft as a possibility for the art party.
You take a ziplock and put in equal parts baby oil to equal parts paint. That's it. SIMPLE! You could add other things too, like glitter. (Which we will do at the art party.)
Lily LOVED this. She just really wanted all the things to mix together and was so interested in the fact that the water based paint and the oil will not mix.
We played with it on a sheet of white paper to make it stand out more. I can't wait to do this at the art party!