Has anyone found any unusual or rare coins when picking up change?
In a roundabout way, yes. I went to use the Coinstar machine, and when I was done, I stuck my hand down in the coin return slot as usual. The previous user had dumped 21 silver dollars in the machine, which it does not accept. I did leave a note with customer service that I had found them, but never heard anything back. They're still in my coin collection.