1/2 is your fingerprint, 1/2 is his (salt clay paint) Salt Dough - 2 cups flour, 1 cup salt, cold water. Mix until has consistency of play dough. bake at 250 for 2 hours, then cool and paint….good recipe for thumbprint pendants... so cute!! must try!!
Homemade Polymer Clay - My favorite is a polymer clay also known as cold porcelain. Its main ingredients are cornstarch and white PVA or Elmer's glue. I like it because it's smooth and a little bit elastic to work with and dries extremely hard. It's also relatively non-porous so it takes paint really well. And it doesn't degrade over time like baker's clay or salt clay does
ONLY use this and it leaves floor spotless. (Heavy duty floor cleaner recipe: cup white vinegar 1 tablespoon liquid dish soap cup baking soda 2 gallons tap water, very warm.) It leaves everything smelling amazing.