We played with Jello today instead of playdough. The basic qualities of Jello are a different than playdough, but the kids still enjoyed it. To do Jello play less expensively, purchase plain gelatin. It takes 4 packets to make a FULL batch (9 by 13 pan) of cubes. The cubes can be stacked, looked through, and eventually mushed up. Various themes could be ocean (blue), slime (green), etc. We used yellow today because it's the color we had left of the 4 pack of food coloring. To color it, I just put food coloring in the cold water. The basic recipe is 1 cup cold water sprinkled with 4 gelatin packets, then mix in 3 cups boiling water, pour into a container and refrigerate for a few hours. Happy playing!