Two players stand at either end of a table and are blindfolded and are handed a soft tube or something similar. Each player must then place one hand flat on the table in front of them, they then take it in turns to try and slap the others hand. After a player has made an unsuccessful attempt, their apponent may move their hand before taking their shot. If a players hand gets hit they are out and another player is blindfolded, at this stage the player still blindfolded can move their hand. Player remain blindfolded until they are out, whoever lasts the longest is the winner.
Source: From the original site.