On: The last-ever penny will be minted today in Philadelphia

[knorker]

US notes also stink.

[knorker → knorker]

I don't get the downvotes. I'm not saying "stink as in I don't like it". US notes literally smell, and I've not gotten that from other currency.

It's not even controversial. If you Google it you'll find that it's even a deliberate anti counterfit technology.