The mischief starts here. This officially licensed Harry Potter flat vinyl sticker features the iconic "I Solemnly Swear That I Am Up To No Good" declaration in bold lettering — with chibi versions of Harry, Hermione, and Ron grinning at the bottom. Stick it on your water bottle, laptop, or notebook and let everyone know exactly what you're up to.
- Officially licensed Harry Potter product
- Die-cut vinyl sticker, 3 x 3.25", single sticker
- UV-protected vinyl sticker — great for water bottles, laptops, and notebooks