Wired magazine invited a group of writers and designers to channel their inner Ernest Hemingway and write a 6-word story. They received entries from the likes of Arthur C. Clarke, William Shatner, Joss Whedon, Margaret Atwood, Michael Moorcock, and Kevin Smith.
You can see the whole list on Wired's site.
My favorite entry was from writer Alan Moore, the mad genius behind V for Vendetta and Watchmen
"Machine. Unexpectedly, I’d invented a time"