The author Neil Gaiman and the singer Amanda Palmer were "married" on the street in New Orleans recently in a combination flash mob, street-mime performance, and birthday surprise party.
The details are in Amanda Palmer's blog, but my understanding is that the pair were in New Orleans for a concert by her band, The Dresden Dolls, earlier this month on Neil Gaiman's birthday. They have been engaged since last New Year's.
She surprised him with a reprise of her street performance as a bride statue down in the French Quarter and compounded the birthday gift with an ambush wedding party and a ceremony officiated ("By whatever powers might be vested in me by any governing bodies or deities, living dying or dead...") by fellow musician Jason Webley.
Was it really a wedding? Are they now married? I'm not sure. But I think the event itself was pretty cool.