Beerpong

I may have misled you on the main game rules page, because beer pong is nothing like ping pong. It is way better imo.

On a table, set up 20 cups in two triangles on opposite sides of the table, filled with a bit of water.
The team gets 2 ping pong balls on their turn, and they may try to get a ball into the cup of the other team.

Make sure that your elbow is never above the table, but always behind it. 
If the ball is spinning in a cup but has not stopped in the water yet, you may try to blow it out of the cup.
If the ball has bounced on the table, you may try to slap it away from your cups.
If the ball rolls back over the table to the team that threw the ball and they retrieve it, they may do a trickshot.
If a cup is hit, it will be removed from the table and that team may drink.
If the two balls hit the same cup, all the cups around it are removed too.
If the game ends up to be a 1v1, shirts may be removed to provide extra intensity to the game.