Don't Let Muggles get you Down Coffee Mug I really want this mug or something with this quote on it. Possibly one of my favorite HP quotes ever.
Harry potter shot glasses-- 1 says: I solemnly swear I am up to no good. 2 says: Mischief managed. Those who know me. Know I'll do everything in my power to get these!
big bang theory!
Turns white when you put something hot in it and changes to say 'mischief managed'.