I have a great way to find coins for your collection. If there is a Coin Star machine at a grocery store near you check at the bottom for coins. I found a copper penny and a Canadian dime there. Also, check at the top where people insert the coins. The coins might go to the size hole that's too small. Nearly got a silver dime at the part where you insert coins. The area was just too thin. Good luck and hope you find this helpful!