A spectator is handed three brass rings and some paper. The rings fit together in such a way that they can be formed into a drum. The paper acts as the skin and the rings are used to secure the paper in place on each side of the drum. Even though the spectator assembles the drum and it is obvious that there is nothing inside, the performer tears the paper and reveals something inside. You can produce four half dollars or some other object(s) of similar size.