I have always wanted to try this and never have. You are using paint?
Melly, we used BioColor, from discount school supply, a kids paint that works on paper and fabric. Liquid acrylics work great too.
I've had trays & packages of unflavored gelatin on my counter since I saw an article for this technique in QA. You've just inspired me to try.
Thanks so much for visiting JaneLaFazio.com!