I put 2 finger paint colors in a Ziploc bag and taped them to the counter. The one I saw on Pinterest taped hers to a dark table so she put a white piece of paper under the bag before taping it to the table but I didn't need to do that here.
Gus just smashed the colors around, mixing them up to make more colors.
We started drawing things in them with our fingers for more fun. We'll definitely be doing this again!
Here's the link to my Pinterest board: