The Magician borrows a ring, coin, or a $100.00 bill (bank note) from someone in the audience. He then asks a volunteer to sign the item with a pen to verify at a later time. The magician then takes the ring (coin, bank note, etc.) and vanishes it right in from of the audience! He/she then picks up a locked wooden box and hands it to the volunteer. As the box is locked, the magician hands the keys to the volunteer. The volunteer opens the box and finds yet another locked box. The second box is removed by the volunteer and opened. Inside the second locked box is the signed object!
You'll have fun performing this!