Good method. Pretty practical, far better than his trick Crushed. However this is not for the
gigging magician due to the set up. Once you set up, you have about 10mins to perform it or so. Set
up must be done privately and it's pretty quick to do but requires you carrying something with you
which is a additional purchase(probably wont fit in your pocket). Realistically this is a special
occasion kind of trick and not something a restaurant or walk-around magician would use. There's
also a mild safety concern.