Thoughts or comments;
Card selected, spectator rips it up into several pieces, they keep one piece, remaining are vanished, burned etc.
Magician has spectator reach into his pocket and remove an envelope.
It is sealed and has postage along with a postmarked date from several days earlier, addressed to the magician.
Magician asks if spectators believe time travel is possible (or some other similar story line etc).
Spectator rips open sealed envelope and pulls out fully restored playing card minus the piece they had been holding.
I've performed this several times and have been getting the "hair on the back of the neck standing up" types of reactions.
People cannot wrap their head around the fact the envelope is postmarked legitimately from days prior, stamped and completely sealed and intact.
Interested in thoughts and comments or suggestions to make it better or patter other than or similar to the possibility of time travel.
Thanks for your thoughts-