is an amazing visual effect, whereby writing in INK moves to another spot!
Ask your audience to choose any card and SIGN the face. You then write the letter X, in ink, on the back of the card. Wave the card in the air - suddenly, the mark you made on the card back moves to the other side of the card back. This all happens with their chosen, signed card!
Very visual and easy to do!
Download the video and begin performing RECOIL