Alastor Moody (possibly)
After the First Wizarding War
Hide drinks inside
After the reveal of Barty Crouch, Moody took his flask back and cleaned it from the potion. However, Moody filled it with Polyjuice potion again in 1997 some minutes before the Flight over Little Whinging as six people had to disguise them as Harry Potter. Moody, himself, does not drink the potion.
Behind the scenes
- The Noble Collection sells an exact replica of the flask, for around $30.