Not sure if this goes under humor or not, but this site is a fascinating daily read. A new idea every day. Take a look at the archives and top ten. My favorite:

Allow voters in political elections to cast a vote against a candidate. Voters would still have only one vote each but each "against" vote would nullify a "for" vote. This system would give voters who are disenchanted with party politics, and perhaps unlikely to vote at all, at least the chance to express their feelings about a party they really do not want to be in power.

Only a few ideas have a political bent. Most are just interesting, or just plain weird. The one about a gun-shaped remote control you could aim at the TV to change channels by pulling the trigger was just like the idea I had in law school twelve years ago -- just ask my roommate.