This cool Wine Goblet Mason Jar with chunky glass features a fun Unicorn Blood design and metal screwtop lid.
"The blood of a unicorn will keep you alive, even if you are an inch from death, but at a terrible price. You have slain something pure and defenceless to save yourself, and you will have but a half-life, a cursed life, from the moment the blood touches your lips." ~ Firenze explains to Harry Potter why the slaying of a unicorn is a crime.
Unicorn blood is a thick, silvery substance that runs within a unicorn's veins. The blood of a unicorn can be drunk in order to keep a person alive. However, the act of slaying a unicorn will cause the drinker to suffer a cursed life though the specifics of what this actually entails are not known well. It is probably a Non-Tradeable Item, since the sale of this substance is controlled by the Ministry of Magic, making it strictly forbidden.
This Wine Goblet Mason Jar Glass with Unicorn Blood design would make a great Christmas gift.