My father started a sharpening business in 1981 (carbide circular saws, steel blades, router bits, etc) He hired a good friend of his. When times were slow his buddy decided to make this.
It's an old corded drill that he played with, it was made as a joke. When I was a kid being in the shop people always asked about it.
He moved his business in 1996, I have taken over after he retired. Found this again and put it on the wall. Not a day goes by that I don't get questions about it.
The fellow (Dennis) that made it during slow times passed about 10 years ago.
I think I have a few more saws I could post that are up in the rafters.