bumper balls for sale

Using a rope, section off a small area of the pool bumpers. Have all the players hop into that section, each holding onto a beach ball. On the count of three, the players all use their beach balls as a means to bump the other players into the rope, as if they're playing bumper cars. Anyone who touches the rope has to leave the pool. Keep playing until only one bumper remains in the pool, thereby winning the game.