What if ping pong, golf, and paddle ball had a baby, and with that baby came an increased risk of head injuries? That pretty much sums up quad table tennis, a game in which up to four players compete by trying to hit a ping pong ball into a hole in the middle of another player's individual table. The tables are angled, so bounces are more unpredictable than in regular ping pong, and more likely to result in one player getting whacked by paddles from overzealous opponents.

The set costs $250, which will eventually make this the world's most expensive beer pong table.

[via Hammacher Schlemmer]