Amanda Palmer sold $15,000 worth of music merchandise on her site in 3 minutes

"From our view here at Bandcamp HQ, yesterday’s launch of Amanda Palmer Performs the Popular Hits of Radiohead on Her Magical Ukulele less resembled a record release than a coordinated strike of ravenous piranha. In one three minute period, her fanbase snapped up $15,000 in music and merch. It didn’t let up much from there: 4,000 digital EPs were sold, the vinyl sold out, most of the high end packages disappeared in minutes, and at the time of this writing, it looks like every other package will be gone in a matter of days."
Source:  Bandcamp blog, 21st July 2010
(See Amanda Palmer's site here)