Materials needed: Beach or bath towel (optional: other towels of smaller sizes)
Lay the towel out on the ground and stand on it. How fast can you flip the towel over? The catch? You must stay standing on the towel the whole time! Now, set a timer for one minute. How many towel flips can you do in that time?
Race someone else, or time yourself again to see if you can do even more. Want more of a challenge? Try a smaller towel.