This Houdini Mug is (almost) as magical as the Great Houdini himself. It features four classic posters from Harry Houdini’s career. Even if it didn’t do anything, it would be a cool mug. But of course it does… When you pour hot liquid into this ~12 fl ounce mug, amazing things happen. In some posters, Houdini vanishes before your very ideas. In another, Houdini’s handcuffs disappear. We’d tell you how this illusion is performed, but magicians never reveal their secrets. (HINT: It has to do with thermal dynamics and pixies.) There’s no escaping it – this is one incredible mug! Disappearing mugs are not dishwasher safe. (Note: a fluid ounce measurement is different than a standard ounce measurement).