Ok, not nearly as entertaining as Bowling with Cats, but great fun for an afternoon with the kids.
What you need:
- 2 plastic bottles reclaimed from the recycle bin (we used 2-liter)
- hot glue gun
- means to drill a 1/2 inch hole
- water (one bottle 2/3 to 3/4 full)
Simply glue the tops of the bottle caps to each other and drill a hole through them. A hole about 1/2 inch in diameter seems to be about right. Smaller holes didn’t work so well. Don’t skimp on the hot glue! Initially I just put glue on the top surface. I didn’t think about the lateral forces a child would put on the joint when shaking the bottle with all available strength. After the first one broke, I glopped hot glue on all exposed sides of the caps. So far they have survived.
If you want to really bring out the “Wow! That’s cool, Dad!” factor, add a pinch or two of glitter to the water.