Material:

Ping pong balls
Long table
Beer

Rules:

1. You fashion the cups in a pyramid with a base as large as of however drunk you want to be.
   
2. When Team 1 lands a ball in a full cup, Team 2 must drink it. Do not remove the cup.
   
3. Drink it and place it back where it was. If Team 1 lands the ball in any empty cup, Team 1 must drink a penalty from beer not on the table.
   
4. Keep firing until all the cups on one team have been drained. Once this happens, the losing team that mean the one with no full cups left who must drink the remaining cups from the other team.