Well there's a program that allows you to make your own.
Userbar generator by amity source. You pick your writing, the picture, the style and colour. You can fiddle around with the positioning and stuff. And they you save it as a jpg file and upload it to something like photobucket.
And my signature is very large. It lists all my fish and other pets. Plus obituaries for all of my losses. I would take it out but I like having it there and feel bad not writing about my deceased fishies. Could do with a way of shrinking it down so half the page isnt taken up by me blabbering about my pets.