When you mention Salvador Dali, the most common image people see is The Persistence of Memory, or "the melting clock painting," as it's often known. Dali painted it in 1931. When I was a kid, I thought that was the coolest painting ever! And I wanted a melting clock. Of course, I'm not the only one to think that. I wrote a post on a melting clock for sale at Neatorama last week, and got several people responding that they know someone else who makes those. So I went to find out how many different versions of melting clocks are avilable for sale on the internet.