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Harry Potter Up to No Good 20oz Mug

Do you solemnly swear?

  • Modeled after Marauder's Map
  • Holds 20 ounces of no-goodness
  • Do you know a spell for washing dishes?
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$12.99

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Do you solemnly swear?

If you plan on spending many nights each year with your best buds, transforming into Animagi and exploring the grounds of your school, then you might need a little pick me up to stay awake.

Pour a hot cup of coffee, tea, cocoa, or butterbeer in this 20-ounce Harry Potter Marauder's Map mug. This red, white, and gold mug displays the infamous phrase, "I solemnly swear I am up to no good." And you can always use it as a reference in a pinch.

Product Specifications
  • Harry Potter Up to No Good 20oz Mug
  • Officially-licensed Harry Potter merchandise
  • Doesn't magically transform, but does hold a hot cup of coffee
  • Fitting mug for anyone who likes a bit of mischief
  • Capacity: 20 oz.
  • Care Instructions: Do not microwave. Hand wash only.
  • Ages 8+

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