Coin, Coin Magic, New Trick, Magic Trick.
NO CHANGES, NO GIMMICK.

You borrow a coin and a pack of cigarettes from an audience member then you ask them to sign their coin. You take their SIGNED coin and throw it at a pack of cigarettes trapping it inside the cellophane.

The effect is very visual and you end clean. Everything can be borrowed, it is completely IMPROMPTU.