Strange Stuff Worth More Than You Imagine. Did You Know About This? Excerpt: "Ambergris (Whale Vomit): I come across an article in the news about whale vomit every few years. A person is walking along the beach and comes across some disgusting blob and for some unexplainable reason has an irresistible notion to pick it up (while I’m sure hundreds of others have walked by it with absolutely no thought of ever touching it). Later they find out it’s whale vomit (also called ambergris) which is a highly sought after ingredient for perfume. If it is good-quality vomit (I have to laugh writing that), the ambergris can be sold for up to $10 per gram, with the finest grades fetching many times more than this."
Hat tip to Dawn C.