In this design challenge activity, learners build a machine that kicks a Ping-Pong ball into a cup lying on its side 12 inches away. Learners use a pendulum, a rubber band, or a combination of the two to do this and test the accuracy of their machines by shooting a Ping-Pong ball into a cup. Educators can use this activity to demonstrate simple machines and kinetic/potential energy. This activity can be followed up with "Extreme Kicking Machine" which adds an even greater challenge into the mix.