What haven't I found? Couple weeks ago was a first: a metal, cylindrical object with "precision door" printed on it. Thought it was a wire core/wrap holder thingie. Looked up at the top of my garage door and there perched another Guess it fell off a work truck.

Almost daily finding coins. I call them discounts/road cash/Kroger cash. The latter is the test: if a Kroger (grocery store) machine will not accept a coin, it goes into the trash. Pro tip. Those machines seem to have the highest tolerance for damaged coins.