Super Fly (Cards Across) Lecture Notes by Scott Alexander - Book Street Magic The magician opens his wallet

The magician opens his wallet and the spectator reaches inside to pull out the bill -- but instead lies their selection

then it turns into a red backed card and all appears normal as you say "I would like you to have a souvenir"

Double Deal Aces - Gene Maze

Sudden Deck 3

Super Fly (Cards Across) Lecture Notes by Scott Alexander - Book Street Magic The magician opens his walletIt's Scott Alexander's cards across routine! This is a cards across where the spectators do all the work. Ten cards are dealt out by a spectator. He then seals them in an envelope and hides them in a "safe location." Just like a smuggler, he hides them in his pants. You assure him that there is no way you would be able to extract the cards now. He then takes ten more cards and goes into the audience to have three of them selected. He seals these ten