Practical Thinking
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Effect
The magician displays a stack of nearly two dozen plagues, each it's own geometric design printed within it. He also displays a laminated sheet and marker.
The designs are mixed and then one of four spectators is asked to select one of the symbols, the selection is free... no force of any kind is used. The spectator is asked to concentrate on their symbol as the magician begins drawing on the sheet, slowly but surely the image comes into focus until the magician is able to draw a perfect replica of the selected symbol.
The effect is repeated with all the selected symbols and each time the magician matches the symbol with complete and unfailing accuracy! All may be examined and the effect can be instantly repeated!