This is a neat, if pretty useless, trick that could quickly become annoying. If you wiggle the mouse enough you can make pretty patterns, though! It uses DHTML and works in version 4 and above browsers, except Opera, where all the banner text text is scrunched up in the top left-hand corner of the page. You can, of course, vary the text of the message (look for the line starting 'var message'; the kerning (look for 'var kern') and change the overall style by editing the <style> block.

Here's the code: