Abstract: A toy cannon is disclosed which incorporates an elongate cylindrical barrel. A projectile is hurled by the cannon by inserting it at the mouth of the barrel. Inside the barrel, a plunger travels at the urging of rubber bands which are mounted on the exterior and parallel to the barrel. The barrel is preferably split so that the plunger has a pair of supporting and extending hooks which are located on the exterior. The hooks engage the rubber band to enable the toy cannon to fire. The toy cannon incorporates a latch at the rear of the barrel to hold the plunger at a caught position. A cowling is provided on the outer surface of the barrel to house the rubber bands that act on the plunger.