Screensavers are more eye-candy than anything else, as screen burn-in really hasn’t been an issue for many years. All are free downloads and some even have a Windows counterpart. A bunch come with version for Windows users as well. Enjoy!
Nibbble is a free Dribbble screensaver for OS X 10.8+
Representing time as a hexadecimal colour value.
The Weather, City Edition is a beautiful screensaver for Mac OSX by designer Stefan Trifan that shows the weather for one city (Now, Today, Tomorrow) with beautiful custom weather icons, animation, time, and date. Using the Yahoo Weather Forecast, the minimalist design with beautiful typeface will greet you every day so you will know what to wear to dinner and whether to bring an umbrella to work tomorrow.
PolarClock 3.0 is now available as a screen saver for Mac and Windows, and also as a dashboard widget for OSX Tiger.
a nice flip-clock style screensaver for mac and windows.
The MovingPhotos3D screensaver sends your photos flying around in three dimensions.
Timebeat is another intriguing motion clock screensaver. Every minute of real time is numerically expressed with the ticking of hands and numbers revolving around its midpoint.