TETRAD TÊTE by Ken Dyne - Book For Professionals "This wonderful effect was first

"This wonderful effect was first produced and popularized by the legendary Al Cohen

Nest of Boxes - Tommy discusses in tremendous detail three unbelievable versions of the Borrowed Watch to Nest of Boxes

This type of coin can produce a thunderous sound

Why only the 4" series

or even sharpies

TETRAD TÊTE by Ken Dyne - Book For Professionals "This wonderful effect was firstWith little more than a pile of business cards and some pens, you are ready to perform a baffling mystery involving no more than ten members of your audience. Ten audience members are handed one of your business cards and are invited to make a drawing. The cards are collected face down and clamped together using a bulldog clip (if you'd like). Three members of the audience now flip open this impromptu 'art book' and concentrate on the drawing they