Performer displays three jumbo cards. We will presume there are three sevens. He takes away one of the sevens, and replaces it with a ten spot. When the cards are fanned again, they are seen to be three tens. Once again he places aside one of the tens, replacing it with a Queen. The three cards are now fanned, and seen to be the three Queens. Supplied with the necessary special Jumbo cards, which makes this easy to do.