A great idea from Russ Styler this funny routine is proving a real winner - and a good way of leaving your audience with your contact info!
You have a card selected and returned to the pack. You say that you have the world's thinnest calculator and produce a small packet of specially printed cards.The spectator signs the front of one of the calculator cards to 'activate' it. There then follows a series of good sight gags and finally the chosen card is found with the help of the calculator.
This is not one of those 'great ideas' that somebody had. It is something that Russ has been working for years and as a full time pro he tends to know what works in the real world.