Well, someone mentioned Absinthe (you know who you are) and I had to stop wallpapering to rustle up
La Fée Verte
Absinthe was much vilified as a drink and had attracted lots of romantic associations since its ban.
I must admit, I was a little disappointed to find the green fairy doesn't give much in the way of visions or dreams.
It does seem to be poisonous to Vampires, though, so I ought to keep some about.
For skeleton-bending instructions and more, see here.
And, for those of you with harder hearts and stronger stomachs, I have other, less fortunate fairies in my collection.
You can see more here. But remember, you have been warned.
Not for the faint of heart or tender of soul.