via the J-Walk Blog:
Try this:
1. Highlight the text below
2. Press Ctrl+C
3. Paste into your address bar
4. Press Enter
javascript:R=0; x1=.1; y1=.05; x2=.25; y2=.24; x3=1.6; y3=.24; x4=300; y4=200; x5=300; y5=200; DI=document.getElementsByTagName("img"); DIL=DI.length; function A(){for(i=0; i-DIL; i++){DIS=DI[ i ].style; DIS.position='absolute'; DIS.left=(Math.sin(R*x1+i*x2+x3)*x4+x5)+"px"; DIS.top=(Math.cos(R*y1+i*y2+y3)*y4+y5)+"px"}R++}setInterval('A()',5); void(0);
Refresh the page to get back to normal. It works with IE and Firefox, for any page that has images. Of course, this could crash your browser. It crashed mine eventually.
That is a great trick. It's even better on a site like bensbargains.net It turns into a little tornado of good deals!
If you didnt have such a good reputation, I wouldnt have dared try that javascript stunt ...