Hovercraft Bowling
Here's an idea for the oh-so-simple to construct leaf blower hovercraft. Originally I was thinking about building a giant air hockey table, but this seems like it might be more fun. We could probably cover the pins in fabric.
Update: I did manage to build the contours of a six-sided PVC bowling pin. It still needs some work to be stable, but I don't think it'll ever be strong enough to survive repeated falls, so I think I'll put it aside until we work on more decorative things.
