Microsoft Video Screensaver
Microsoft Video Screensaver allows Windows users to set a folder from which videos shall be used for a screensaver. You may choose to have audio on or off and can use any video you have a media player codec for.
Briblo Screensaver
Movable brick block screensaver resembling Tetris with Legos.
Fliqlo Screensaver
A screensaver that displays the time using a flip clock.
CodeSaver
A truly "open source" screensaver that "types" its own code (or other selected text files) to the screen.