Ooze is fun to play with on its own, but of course my son wanted to add a toy into the mix! He had lots of fun slithering his rubber snake around in the ooze--and the snake created lots of cool textures and patterns. All in all, a fantastic (if a bit messy!) activity that my son really loved. Oh, and here's a tip: If your ooze starts to harden, just add a bit of water to make it fluid again.