Fillet of a fenny snake, 
In the cauldron boil and bake; 
Eye of newt, and toe of frog,
Wool of bat, and tongue of dog, 
Adder’s fork, and blind-worm’s sting, 
Lizard’s leg, and howlet’s wing, 
For a charm of powerful trouble,
Like a hell-broth boil and bubble.

-Shakespeare, Macbeth