Firing point blank at an advancing army of lead soldiers, this cannon will provide endless fun for any small boy playing at army maneuvers. The cannon is harmless because all it does s toss a fuller ball across the room when the trigger is pulled. It is made of pine and the operating mechanism is the jaw, spring and trigger of an ordinary five-cent mousetrap which are assembled on the cannon as shown. In firing the cannon, the jaw is pulled back and held by the trigger, after which the fuller ball is slipped over the L-hook. Then the trigger is pulled and the jaw swings forward, pushing the ball from the hook and throwing it out in front.