Prosthetic putter attachment for a pirate golfer with a peg leg. My uncle had one just like it.

It has to be a gardening tool - for bulbs. Either that, or it is the world's worst hole saw.![]()

It's called a shoe.
It has a long wooden handle that goes in the circle and is pinned through that hole. It's for lifting doors and sliding under things. I think there is a large version of it that people wedge under barrels or something.