In 1931, Salvador Dalí painted The Persistence of Memory, a landmark piece of surrealist art that used melting pocket watches to symbolize the relativity of space and time in dreamscapes. (More on that below.)
If you haven't seen the painting at the MoMA in NYC, you've almost certainly seen those melting watches on posters and all sorts of kitschy products. Those poor watches have been abused over the years. But somehow I don't mind seeing them on my favorite ephemeral canvas -- the frothy milk surface of a latte. The latte above was decorated by Kazuki Yamamoto, a Japanese artist who uses nothing but a toothpick for a paint brush. You can find an online gallery of his work here, which includes some 3D creations. Or follow pictures of his latest works on Twitter.
The 6-minute introduction to Dalí's 1931 painting (below) comes courtesy of Smart History.