Product details
I've performed this effect for 20 years.
Visually change the serial number on a bill to reveal the spectator's card.
Imagine...
A spectator chooses a card from a deck or in their mind.
You ask them for a dollar bill.
They sign the bill.
Then, as the spectator is holding their signed bill the serial number changes to spell out their chosen card.
THEY CAN KEEP IT AS A SOUVENIR AS PROOF OF THE IMPOSSIBLE!
