A collection of fun screensavers distributed by Microsoft as part of the Windows Entertainment Pack for Windows 3.1. Idlewild ran in the background, and had a bit more flexibility (the ability to set hot corners, for example) than the standard Control Panel. Additional modules were downloadable from your neighborhood BBS, and did all sorts of kooky graphical tricks.
Also the original name of JFK International Airport in New York, as alluded to above and in the theme song to Car 54 Where Are You?