Check out our Random Sig / Random Avatar service at
http://www.gaming-freaks.net/randsig
It allows you to have a random image like this:
RefreshThe page to see my image change...and the best part is that it's a GIF file.
We a have developed a version 2 of this product and are planning on porting it as a vB integrated hack. <----No release date yet - Anyone interested in porting this??