The amazing design duplication effect uses only three business cards. The performer explains that pictures and images are powerful communications. Companies spend tens of thousands of dollars to create just the right image for their corporate logo. Saying this, the performer displays three of his business cards and hands them to the participant. Turning his head, the performer asks the participant to draw any image or picture she likes on one of the business cards. She then is instructed to staple one of the other business cards to the card with her drawing on it, sealing in the drawing. She is then asked to hold the stapled cards between her palms so that no part of the cards is showing. Only then does the performer turn around. Picking up the remaining business card, the performer draws on it. The drawings match perfectly. Believable mentalism at its best.