Print a bunch of these rings and see how many tennis balls you can stack! Here are a few game modes for two or more players:
See who can make an 8-ball tower in the shortest amount of time.
Two or more players take alternating turns placing a ring and tennis ball on the stack. The first one who causes the stack to fall loses. If there are more than two players, the loser sits out the next round, and the remaining players start over with a new stack.
Two or more players or teams race to see which can build the tallest tennis ball tower in one minute. The tower must be standing at the end of the minute.
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