Hey.
Well, this is my guide to a signature that i think is cool
First off, make a black new "paper" in Photoshop.
Go to Filter - Layer - Lens Flare ...
Make a lens flare in the left upper corner.
Make a lens flare in the right upper corner.
Make sure that they are the same size.
Now, go Stylize - Glowing Edges.
Now, it will look like 2 eyes
(Optional) Make a border. it can be all colors, just make sure it isnt too "fat" .
Download a cool font from anywhere, and write it on your image , and it should be very very very cool ( like mine lol)
Here's my result..
[IMGL]http://img441.imageshack.us/img441/8953/wdwdyn3.jpg[/IMGL]