Here is a golden oldie that has finally be reproduced. It goes back to a Ken Allen idea and the originals are almost impossible to find!
The performer displays a thin piece of black plastic with four holes which each hold a colored cocktail sword. Very simple and straightforward!
While the magician turns his back a spectator shall pull out one of the swords, show it to everyone in the audience and then replace it.
The magicians turns around and immediately names the selected sword.
The method is simple and has nothing to do with the direction of the sword handles/blades or anything like that.
A clever little fooler!