Bewildering Blackboard Terry Lager
"EFFECT: The performer displays a 2 1/2" by 3 1/2" chalkboard, showing it to be blank on both sides. The spectator signs his or her name on one side of the chalkboard, and then selects a card. When the small chalkboard is turned over, the spectator`s selected card has mysteriously appeared written in chalk! Comes Complete"