A few extra acorns?

A few weeks ago we lost a large limb from our old oak tree.  The limb was overloaded with acorns and simply could not bear the weight of those acorns any longer. 

The Dad that lives at this house started thinking about what could be done with all of those acorns.  I'm not quite sure how he came to pull together a couple of bike tubes that had blow outs earlier this year (or why in the world he still had them hanging around), some bungee cords and some leftover duct tape from this project. But, put them together he did.  In the end, the kids ended up with a pretty cool acorn launcher.

Just another way to reuse, re-purpose and recycle, I guess.