HARRY POTTER Mug Cauldron Hogwarts Crest. This Harry Potter mug is a great way to add a little fun to the home. It resembles the cauldrons used in Potions lessons at Hogwarts School of Witchcraft and Wizardry. The mould has been hand sculpted to get the perfect round shape and detailed handles. It features both the Hogwarts Crest and the Apothecary Department symbol in a metallic finish. A perfect gift idea for a true Harry Potter fan.