You Don't Even Want To Know Where Musk Comes From

[frogmarch]

5. and then there's Ambergris

i.e. whale barf sometimes found floating in blobs on the ocean

from Google:

Ambergris is a flammable, waxy substance that comes from the digestive systems of sperm whales and pygmy sperm whales:

Appearance: A dull gray or blackish solid with a marine, fecal odor when fresh

Origin: It's believed to form when whales eat irritants like squid beaks, which produce a slippery substance to protect their digestive organs

Uses: It's used in perfumery as a fixative

Value: It can sell for up to US $25 per gram, which is close to the price of platinum

Rarity: It's only found in about 1-5% of sperm whales and pygmy sperm whales