My friend Beryl Sokoloff filmed the construction of the Picasso Sculpture "Sylvette" on the Princeton campus. He told a story that while there, the Physics lab consulted the concrete artist Karl Nesjar as well as himself to help them pick out something of Einstein's that would look pleasing aesthetically to be engraved in stone somewhere on campus. They were given access to his office and with assistance finally picked out some beautiful undecipherable notational writing. It was delivered to the physics department for decoding and ended up being a note for a pizza delivery he wanted.
More information about text formats