Whole moustache of crow
A shoebox of truffles teased at dawn
A pinch of chopped horn of lizard
A mixing bowl of poisonous toadstools boiled after an extravagant tea
Dissolve with acid in the cauldron for at least an hour.
Induces princesses who refuse to marry to sing bawdy love songs, and makes the nearest unbetrothed prince or princess wither and die.