We are proud to offer Johnson Precisions Gaffs.
This is such a classic... that we recommend it with all of our hearts. Easy to do and self working! A Half Dollar and a 20 Centavo are given to a spectator to hold behind his back. Magician asks for the half dollar which the spectator successfully hands over. Next you ask for the 20 Centavo. He can't hand it over because it's changed into a quarter. Boom! Awesome magic! Plus, you can do like 100 other tricks with this gaff.