“I solemnly swear that I am up to no good.” Just recite the phrase and tap your wand to learn the location of every inch of Hogwarts. Here, we offer a slightly different brand of magic. The exterior of this Colour Changing heat-sensitive mug transforms from black as hot liquid is added to reveal a full color image of the Marauder’s Map, along with the two magic phrases made for its use. Whatever you’re up to, this mug (and your morning coffee) will help insure that your mischief stays 100% managed.
- Color changing, heat-sensitive ceramic mug
- Heat-activation reveals hidden image
- 11oz in size, weighs 1lb