☰ mtdb > Tricks > Trick< Back to all tricksPractical Thinking Permalink: mtdb.co/?PracticalThinking Creator: Penguin Magic You display a stack of nearly two dozen plastic cards, each with it's own geometric design printed within it. You also display a laminated sheet and a marker. The designs are mixed and then each one of four spectators is asked to select one of the symbols, the selection is free....no force of any... Buy From: REVIEWS No Reviews Yet. about | login | register | dealers | tricks | creators | contact |