I Solemnly Swear That I Am Up To No Good Mug is an amazing Harry Potter inspired mug! If you love magic, wizarding and HP then you'll love this mug. Our 11 oz. and 15 oz. mugs are made from the highest grade ceramic there is, and the designs are printed and sublimated right here in the United States. All our mugs are dishwasher and microwave safe, so there's no need to worry about how to clean them or whether or not you can use them to heat or reheat your favorite beverages. Moreover, the imprinted design is printed on both sides of the mug, and we guarantee the designs won't chip or fade; Lavender & Wolf's mugs are built to last.
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