Money, Money, Money

Effect: Spectators try to win some money – but you win.

Secret: You show five envelopes. One contains a £5 note, the others slips of paper. You have secretly marked the money envelope with a pencil dot. Ask someone to mix the envelopes then return them to you. Move the marked envelope to the second position. Ask someone to spell "money", transferring one envelope to the bottom of the pile for each letter. He keeps the envelope that falls on the letter Y. Do the same with three other spectators. You are left with one envelope, the one containing the money.