Hobo nickels carved by redditor HarpuaTheHound.

These are actual engravings. On nickels. Buffalo nickels, to be specific. Incredible.

Hobo nickels originated in the early 1900s when hobos would carve into nickels to establish their own currency for food and shelter.

Here is a wikipedia article about hobo nickels.

Here is a warning that I am going to make it rain hobo nickels in the club from now on.