It's a common sight on a busy day at the beach: two people knocking a rubber ball back and forth with bright, wooden paddles. The object? Keeping the ball in the air for as long as possible. Simple as it may sound, success requires not only individual skill and finesse, but coordinated teamwork as well. Indeed, like all the best pastimes, paddle ball isn't fun despite being challenging; rather, the challenge is what makes it so fun! Fortunately, when you play on a level lawn, without sand underfoot or waves crashing nearby, it's much easier to master the game. Even better: In the backyard, you don't have to worry about accidentally sending the ball screaming in the direction of any unsuspecting sunbathers. Available at Amazon; $15.94.