This is a simple, yet amazing, way for moving a dot that has been drawn on the back of a spectator's card.
The card is signed by a spectator. Then, you draw a dot on the back of the card. Magically, you can make it travel to another place on the card! For the finale, you can make the dot vanish from the spectator's card , and instantly appear on a different card!
No special ink!! Instant reset!! Can be examined before and after the effect.