This trick is perfect for stage performances for a large crowd.
A spectator in the audience is invited by the magician to sign or draw on the coin with a marker pen. This is for the magician to indicate that the coin used in the performance is indeed the same unique coin.
Then the magician presents two fully transparent glasses of different sizes. The larger is like a drinking glass, the smaller is like a shot glass. Then, the audience is asked to check and verify that the glasses are indeed normal.
The magician places the small glass on the table, and the larger glass is placed over it in an inverted manner. Therefore, the setup is basically the larger glass covering and containing the small glass.
Finally, in his act of magic, the magician will grab the unique coin marked by the magician in his hands, he holds it up…. And without any contact with the glasses at all, the unique coin seems to fly through the glasses, right into the small glass! This is a superb trick to perform, and we are sure everyone in the audience would love it for its simplicity.