I am sorely tempted to build an entry for Dr. Erasmus P. Kitty's Great Hand-Car Regatta. There's not much info, but it looks like some great things are already being built. I love the idea of human powered vehicles to put to use some of the vast swaths of abandoned railway in this country.

That, and I can already see myself furiously peddling my creation down the tracks (cackleling!); twirling my moustachio, threatening iminent doom upon a damsel, tied to the tracks, vainly trying to wiggle free her bonds.

I'm sure the event will be fun, too.