harry potter 24oz ceramic soup mug from Harry Potter Themed Mischief Managed Mug, source:fun.com
“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 Morphing Mugs heat-sensitive, color changing mug transforms from black as hot liquid is added to reveal a full color image
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The world of Harry Potter comes alive with this “I Solemnly Swear…Mischief Managed” heat changing mug. Fill this mug with hot liquid and the text changes from “I Solemnly Swear That I Am Up To No Good” to “Mischief Managed.” This 11-ounce mug changes from black to a creamy, off white color, completing the