Available from http://www.magicmagic.co.uk/store/index ... ductId=208 for £12.99.
A Ziploc bag is closed and placed on your palm. A borrowed signed coin is placed on top of the bag. The coin visibly penetrates the still sealed bag.
Looks interesting - has anyone got this
I was just wondering how examinable everything is and if there are any angle (or any other) issues 
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The kid who invented this clearly has no idea about the concept of heat... he seems to think that if you borrow a coin, mark it, and show it penetrating a plastic bag, they're going to want to examine the coin first. 