Bubble Runners are hamster balls for humans!
These were new to me and I was amazed as a child was placed in the deflated ball, told to cover his ears and then the ball was blown up with air.
Then... ever so carefully, the ball is rolled into a shallow pool of water. That's when the fun begins!

Now what's not to love about that?

Check it out here... http://www.youtube.com/watch?v=4cSHHuCosDM

(This gallery under construction)