Magic Tricks

Yes. Just have a gimmick with your initials on it and your set. Borrow a coin and have the spectator sign the tails side if your initials are in the head side of the gimmick and vise versa. Take the borrowed signed coin from them and sign your initials on the corresponding side that matches your gimmick. When doing the effect the only signature they will see will be yours but it doesn't matter. A signed coin is a signed coin. When ending the effect, pull the coin out via your favorite method and give the coin to the spectator. They will be amazed. P.S if you don't want to destroy your gimmick make some more at a printer store. Infinite gimmicks to your disposal. Yaay.

This effect cannot be done signed