See this? It's Jupiter. It bounces. And we made it. :)
But ...will it bounce?
I think my boys can vouch for that.
Weird Science's Bouncy Ball Factory is available at FullyBooked for Php245.00. Great hands-on science project you can do with your kids this weekend! You'll have to explain to them how water hardens crystals though, and how that leads to bouncing. That's all part of Creative Parenting. Hehe... good luck!