Make your Mac screen look like a flip clock.
FromFliqlo:Fliqlo for Mac is a clock screensaver that allows you to make your desktop/laptop screen look like a flip clock. Thanks to its visibility, you can read the time even from a distance.
Place a beautiful water effects as your desktop's screensaver.
Turn your Mac into a minimalist clock.
Watch photographs of space taken by the Hubble telescope as your screensaver.