In this test of precision demolition, kids use a miniature wrecking ball to knock down the tower one box at a time. Site Prep: Attach one end of a long piece of string to a tennis ball painted black (we tied ours to a small screw eye inserted in the ball, but you could also secure it with duct tape). Feed the other end through a key ring taped to a tree branch or door frame. To construct the tower, number and stack 7 empty cereal or snack boxes.
Demolition: Players stand about 4 feet from the stack. They adjust the height of the wrecking ball by pulling on the string, then swing the ball at the tower. The group's challenge: knock the boxes off in sequence and only one box at a time. Each player's turn lasts until he misses. If he knocks off more than one box, or knocks one off out of order, it's considered a miss and the box is restacked. The person who demolishes the last box wins.






