The Jar (Gimmicks and Online Instructions) by Kozmo, Garrett Thomas and Tokar Dr. Sawa one of the contributors is

one of the contributors is the one and only Paul Brook

you'll find that it will almost certainly be one of your pet effects in almost no time at all

Cold Blister

MENDOZA CUPS AND BALLS - A classic of magic with the Mendoza touch

linear and devastating to a lay audience

The Jar (Gimmicks and Online Instructions) by Kozmo, Garrett Thomas and Tokar Dr. Sawa one of the contributors is"The Jar is an incredibly valuable tool in a mentalist's arsenal due to its deceptively natural look that hides its true nature as a multifaceted utility item capable of accomplishing customized miracles on stage, screen or close up." Paul Draper (Mentalist and Anthropologist) "Finally a switching device that doesn't look like a magic prop. It's a wonderfully organic and practical gimmick." Shawn Farquhar In the realm of switchboxes, we searched for