Harry Potter Mug‎ I Solemnly Swear That I Am Up To No Good New

This Harry Potter Mug is the perfect addition to any fan's collection. With the iconic phrase "I Solemnly Swear That I Am Up To No Good" printed on the front, it's sure to bring a smile to any Potterhead's face. Made from high-quality ceramic, this mug is both microwave and dishwasher safe, making it a practical choice for everyday use. Measurements are in photos, see photos.