The Weasley twins would be so proud of this Harry Potter I Solemnly Swear Script Lanyard, not to mention Mssrs. Moony, Wormtail, Padfoot and Prongs! Keep everything you need to roam the castle at night - er, keep your keys and work ID handy - on this sturdy lanyard, printed with "I solemnly swear I am up to no good" on one side and a pattern of wands, glasses, and lightning bolts on the other. The lanyard also includes a glasses-and-lightning bolt charm.