An ordinary light bulb is in a clear plastic bag that is sealed with a large bag clip.  You have a person concentrate all of their mental energy on the bulb.  "It Explodes!!"  This is unexpected "Bang" stops the hearts of even the most hardened spectators.  You can also vanish a coin and make it appear inside the bag during the exploding of the bulb.  Can be done completely surrounded.  Comes with extra clear bags.     (Combined shipping on 5 or more items)