Things You'll Need
Instructions
Cut a 2-foot-by-4-inch piece of 1/2-inch plywood with a skill saw. Measure 5 inches from one end and mark the position on the board with a pencil.
Cut a 2-inch diameter wooden dowel to 4 inches of length. Place the dowel on the board at the marked position. The dowel spans the width of the board.
Drill a three-fourths-inch screw through the board and into the dowel. Place the screw 1 inch inwards from the edge of the board. Repeat on the opposite edge.
Mark the board 2 inches inwards from the long edge or edge opposite the wooden dowel. Work the measured point with an electric circular sander to create a round indentation. The indentation marks the ball position.
Place a soft, foam-type ball on the indentation. Step on the dowel side of the board to launch the ball into the air. Catch the ball and repeat.