To start off I gave them a canvas. Armed with paint brushes the set out with two very different styles.
Once they got the canvas's painted they covered certain sections (their choice) with tin foil. Then I gave them a new item to use as a paint brush. We used knoted rags, coffee filters, sponges, and of course Gabe's favorite Hands.
Before each new style of painter, the boys would lay down some more pieces of tin foil. Once it was all done we peeled up all of the tin foil to show the different layers. The boys had a good time with it. By the end Sam even started to let loose and paint along with the music. It was great, a lot of fun.