Looking around for a clock screensaver I stumbled across Fliqlo, which is a simple and free flip clock screensaver that mimics the appearance of those retro flip clocks that existed in the time of dinosaurs.
As you might expect from a clock screensaver, settings are limited, you can adjust the size of the flip clock and set to 12 or 24 hour time, that’s about it.
A quick caveat, Fliqlo is actually a Flash file, which makes it cross platform compatible with Mac OS X and Windows. Of course the other side to this being Flash is that if you have a Mac with Flash Player uninstalled, then you won’t be able to run it. It’s lightweight enough that it’s not going to turn your Mac fans into a jet engine, but just be aware that it does require Flash Player to be installed.
If you want a retro clock screensaver, check out Fliqlo, you can get it here for Mac and Windows.