A Whole New Hole by Tenyo Magic
See Video Demo Below:
NEW FROM TENYO!
The magician displays 2 cards, each card has a round hole at the center.
One card is freely chosen by the spectator. Next, the round hole magically transforms into square hole!
The card is handed out to the spectator immediately to make insurer it actually have a SQUARE hole!
A GREAT, VISUAL piece of close up magic!