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harry potter catalog

Harry Potter (I Solemnly Swear) Morphing Mugs Heat-Sensitive Clue Mug MMUGC924

Price: $28.86

I solemnly swear that I am up to no good.


Pour hot liquid into this officially licensed Harry Potter Morphing Mugs Heat-Sensitive Clue Mug and the Marauder’s Map appears!


  • Officially licensed heat-sensitive stoneware mug
  • Heat-activation transforms the image revealing the full image
  • Large 16oz sturdy ceramic mug
  • Authentic Trend Setters Ltd Morphing Mugs® Heat-Sensitive Clue Mug
  • Avoid microwave and dishwasher use, hand wash only recommended

*Hand wash only


HARRY POTTER, characters, names and related indicia are trademarks of and Warner Bros. Entertainment Inc. Harry Potter Publishing Rights JKR.  (s18)