JK Rowling may have dismissed us regular humans as muggles, but this custom heat change mug could teach Dumbledore a thing or two about magic. Simply fill the personalized mug with hot water and watch the plain black exterior transform before your very eyes! Hey-presto! A pet of your choosing will appear like a beverage-filled apparition, and you don’t even need to utter the words ‘kettle-aramus!’ (though you can if you want to).
