HARRY POTTER Drinking Glass - Hogwarts Crest. Officially licensed merchandise. This Harry Potter glass is an absolute must-have for every fan of the world of witchcraft and wizardry. The themed glass features the iconic Hogwarts crest, including the symbols of each of the four school houses: Gryffindor, Hufflepuff, Ravenclaw, and Slytherin. A perfect gift choice for a true Harry Potter fan.