Welp, once when I was 11, I found a Frankie on the playground. I still have it now that I'm 23. But I was stupid when I was a kid and cleaned it with toothpast >_< Roll searching, I've found one 90% Kennedy. From asking bank tellers if they have any halves, I've found one 40% Kennedy. And finally, from searching the till at work (I'm the supervisor, I get to settle the drawers) I've cleaned up rather nice. I've found one 40% Kennedy, one War Nickel, and I average about 1 silver Rosie a week that I get to keep. I don't always keep the Rosies though. We have rules. Whoever sees it first gets dibs. But I have a deal going with the only other coin collector that works there, since I'm a supervisor and he's not and I have an unfair advantage (plus he doesn't usually cashier), we switch off. If he's working and I find something I want, I can buy it out every other time, and the other half of the time I offer it to him. I feel it's fair.