Who says that coffee cant be turned into money? Just find one beggar on the street, bring him David Blaine and wait one minute! Oh, we almost forgot: bring camera with you...
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You think that trick is seriously that simple? I know that it's just a trick of the eye, but I assure you, it is not that simple.. David Blaine is not a retard who think that the mass would fall for such tricks.. Although seeing people like you does make me wonder sometimes..
Second, its just coins covered by some coffee.. then squeeze the bottom so the coins rise up and thats the trick :(