A pinch of ground fur of griffin
A bushel of rose petals picked on Beltane night
A piggybank of oysters gathered when Halley's comet is in the sky
A bureau of deadly nightshade swiped on a midwinter's eve
Barbecue over the cauldron on the night of a full moon.
Induces princesses trapped in towers to grow wings, and makes elderly kings transform into singing toads.