You need a large box lid, or surface with edges so the ball can"t fall off the edges. Cut two goals at either and of the box. You also need two staws (have a clean straw for each player) and a ping-pong ball. Now two people are chosen to play. Both are blindfolded and stand at either end of the box so they are behind a goal. The ping pong ball is then placed in the middle, and the players are told to start. They must try to blow the ball through the others goal. The first player to do this gets to remove their blindfold and someone else takes their place. Everyone should have at least three goes. Whoever scores the most goals is the winner.
Source: From the original site.