To make a "Bola", stuff a rubber softball into a long sock and tie a knot in the sock just above the ball. Now tie a rope to the sock. Lie down on your back and start spinning the Bola, slowly letting out the rope. When you've got it rotating at a full radius, everyone can begin jumping into the circle. You may increase the speed, or have two people join hands, and jump in partners. If you're nicked by the Bola, you may continue or sit out. Go until only one winner is left.