This is probably one of the must fun games I have ever played. (Maybe because we were all drunk, or maybe because the idea is fucking GENIUS!)

Redneck Frisbee
My friends and I like to play this when it is warm enough outside. You set up two poles on opposite ends of each other, with a beer bottle balancing on top. There are two people at eat pole, each have to be holding a beer in at least one hand. The point of the game is to not let the other team knock over your beer bottle. You also cannot drop the beer bottle you are holding/drinking.