How to Make a Catapult out of a Cardboard Box
- 1). Cut one piece of cardboard from the box to measure 1 foot square for the catapult base.
- 2). Cut the other piece of cardboard to measure 4 inches by 1 foot for the lever. Fold the lever in half lengthwise.
- 3). Poke a hole in the center of each side of the lever with the awl. Poke a hole in the middle of the base.
- 4). Cut the rubber band and make a knot in one end.
- 5). Pull the rubber bank up through the base and both holes of the lever, with the knotted rubber band end on the bottom of the base.
- 6). Tape one side of the lever to the base. Make a tight knot in the other end of the cut rubber band.
- 7). Tape the spoon handle to the top of the folded lever, with the bowl of the spoon facing down and extending past the unfolded edge of the lever.
- 8). Pull the spoon back, place the marshmallow in the bowl and catapult the marshmallow forward.