I've heard about pumpkin chucking events, and seen a few on TV thanks to MythBusters, but I've never experienced one in real life. That may change later this month: the Last Fling Pumpkin Fling is being held in Belvidere, New Jersey on October 30th and 31st, 2010 at Hensler Farms.
It seems like a cool event -- students from around the state will be competing to see who's squash catapult or trebuchet can throw a pumpkin the farthest. I can see my kids loving this, and it looks to be a great outing for the entire family (including my wife, who's the one who suggested it.
Learn more at http://www.pumpkinsling.com.