How to Build a Catapults?

To build a catapult, you’ll need something such as a spoon, a center point (such as a small wooden block) and a rubber band. Now, place the spoon on top of the center point and rubber band the bottom of the spoon down fairly tight, yet just enough for it to move. Place an object in the spoon, push down the concave end and then let go. Woo-hoo!