Mark two four-inch circles 5 feet apart on the floor to designate the
goals in the relay. Choose sides and give the leader of each side an
irregularly shaped potato and a table knife. The players, in turn, must
roll the potato from one circle to the other and back again with the aid
of the knife. Judges can check to make sure that the potato is in the
circle each time. As each player comes back to the starting point, he
hands the knife to the next player and the relay goes on.