Here is an avatar and a bunch of sig that I made a while ago...
A small avatar that I made for another forum:
A bunch of sigs that I created a while ago:
Bad signatures are bad. To be honest I didn't know what was I doing when I was making these things, I just messed around and this is what I came up with, and if I wanted to recreate the same image after a week or two passed by I partially forgot how to make them. Is it the same for you guys?