From Weird Earl's

Weird Earl's is an archive of links to web "curiosities" on the Straight Dope home page. A recent link takes us to the Squished Penny Museum. I have to admit I collect these things...or rather it was decided I collected them. My wife came back from a business trip with a few of these and said "You collect these, right?" No. "Well, you do now."

I've got them from the Empire State Building, the Hemingway House, and the Great Smoky Mountain Railroad to name just a few. But I don't have this one:Huh. Didn't even know it existed.