Aquarius is an OpenGL based Windows screensaver that displays images, video, and Web pages on a variety of moving objects. Many different media formats are supported including, most recently, images from the photo sharing Web site Flickr.
The media can be stored on your computer or streamed in from the Internet. Aquarius comes with a list of built in media to try and it's really easy to add your own. Version 2.3.9 includes unspecified updates.