I was reminded, today, of this whole-house machine. Which is rather marvellous. And what reminded me of it was this video by OK Go, for their song This Too Shall Pass. The link's via boing boing, and in the comments, there's mention of the original video for said song, which is also quite entertaining, in an entirely different way. The band have previous, too: witness their treadmill video for Here It Goes Again.