Vorboils is an awesome 3D screensaver. It can generate endless, beautiful, random wormholes, is highly configurable and can generate random wallpapers for your desktop too! You can also select an image to display on the spinning cube to advertise your business. You really have to see it in motion to fully appreciate the funky effects it produces.

Option to generate and automatically update desktop wallpapers!
Ability to take screenshots!
Option to choose your own logo to display on the logo cube (supports masked images too)!
Ability to run in interactive mode!
Sync the clock and your PC time to an online atomic clock (accurate to 1 second in 6 millions years)!
Loads of wacky clock faces to choose from!
Save, load, download & share your favourite themes!
Beautiful lush DirectX graphics with amazing special effects!
Fully configurable - 194 configurable options!
Show real-time statistics of all configuration parameters!
Supports resolutions right up to 1792x1344 in glorious 32 bit colour with anti-aliasing!
Install / uninstall support!
Free updates for life!
Lifetime technical support!
Warm satisfaction that you are supporting an independent software developer!