Here's a simple way to create a nice looking screen saver from one of the screen savers your machine is already equipped with (Beziers).

• Open the “screen saver properties” dialog
• Select “Beziers“
• Click “Settings“
• Change “Beziers in each loop“ setting to 10
• Change “Repeat each loop“ to 100
• Change “speed“ to slowest
• If you have this setting, make sure to select “random colors“
• Press “OK“ and click “preview“
• Feel free to play with the amount of Beziers in each loop until you feel you like it.