Morphing Mugs Harry Potter – Marauder’s Map – I Solemnly Swear

Bring a touch of magic to your mornings with this heat-sensitive 16 oz ceramic mug featuring the iconic Marauder’s Map from Harry Potter. Watch as the map is revealed when you pour hot liquid into the mug, making it a fun and interactive piece for fans of all ages.


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  • Heat-Sensitive Design: The Marauder’s Map magically appears when hot liquid is added, making it perfect for your favorite beverages.
  • Iconic Harry Potter Quote: Features the famous line, “I solemnly swear that I am up to no good,” adding an authentic touch for fans.
  • Large Capacity: With a 16 oz size, this mug holds plenty of coffee, tea, or hot chocolate.
  • Durable Ceramic Build: Made from high-quality ceramic that’s both microwave safe (for heating liquids) and durable enough for everyday use.
  • Perfect Gift: An excellent choice for Harry Potter lovers, collectors, and anyone who enjoys a bit of fun with their morning coffee.

Whether for yourself or as a gift, this heat-sensitive Harry Potter mug is sure to enchant fans with its magical transformation and stylish design.


As a participant in the Amazon Associates program, I earn from qualifying purchases.