Spirit Initials

Effect: A spectator's initials appear on his own hand.
Secret: Hand someone a soft pencil and ask him to print his initials on a sugar cube. Take the sugar and secretly press your thumb against the initials. Drop the sugar in a glass of water. Ask the spectator to hold his hand over the glass. To show him what to do, you guide his hand over the glass. As you do this, press your thumb against his palm. You have now transferred a copy of the initials to his palm. He will receive a surprise when he sees the initials on his palm.