Homemade Compass - for Drawing circles of any size

[captain belly]

Thought I'd actually start contributing some of my tool ideas. This video is pretty old, but the quality is good enough to see the details.
This is a compass I made from scrap metal. I'm always needing to draw and cut out circles, and there's not a compass made that's affordable that will draw the various sizes that I need. So.... I made one, and it works great. Hope this helps someone else.