Think you're smart enough to master My Other Half? This set of wine glasses is connected via tubing at the bottom, which means liquid always flows down to the lowest glass. Essentially, you'll have to work together with your partner whenever one of you wants to take a drink. A pretty neat game that ensures you won't get hammered by yourself and puts a little more fun into drinking (as if it needed it).
And if you can master these fluid dynamics, you could make sure your date always has more to drink than you. Not that we're condoning that. Hit the jump to see it in use.