Solemnly swear you are up to no good with this Harry Potter Marauder's Map Heat Reveal coffee mug! It's Magical! The mug features a solid blue exterior that reveals the image when a hot beverage is added. Heat reveal works w...

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Solemnly swear you are up to no good with this Harry Potter Marauder's Map Heat Reveal coffee mug! It's Magical! The mug features a solid blue exterior that reveals the image when a hot beverage is added. Heat reveal works with coffee, hot chocolate, or any warm beverage (including hot Butterbeer) -- No wand necessary! A perfect gift for any muggle who's a fan of the Harry Potter book series or movie franchise! Officially Licensed Harry Potter product! Ceramic. 20 oz. Mug measures: 5" x 5" x 6"

  • Make your morning coffee a magical experience with this Harry Potter Heat Reveal Mug!
  • It magical! The heat changing ceramic mug features a black exterior that reveals an image of Hogwarts School of Witchcraft and Wizardry when a hot beverage is added.
  • Heat reveal works with coffee, hot chocolate, or any warm beverage -- No wand necessary!
  • A perfect gift for kids, teens and adults who love the Harry Potter books or movies! Makes a great gift for Christmas, birthdays, holidays, Valentines Day, Easter and more!
  • Officially Licensed Harry Potter merchandise! Ceramic. 11 oz. Hand wash. Do not microwave.
  • Make your morning coffee a magical experience with this Harry Potter Heat Reveal Mug!
  • It magical! The heat changing ceramic mug features a black exterior that reveals an image of Hogwarts School of Witchcraft and Wizardry when a hot beverage is added.
  • Heat reveal works with coffee, hot chocolate, or any warm beverage -- No wand necessary!
  • A perfect gift for kids, teens and adults who love the Harry Potter books or movies! Makes a great gift for Christmas, birthdays, holidays, Valentines Day, Easter and more!
  • Officially Licensed Harry Potter merchandise! Ceramic. 11 oz. Hand wash. Do not microwave.