Here would be my suggestion. Sticky this thread for an alotted time period giving the members a chance to sign up. Then, a Photoshop Master (there must be one out there) takes any Habsworld logos and such and creates a card design leaving areas for usernames/real names to be typed in.
Signatures would be pretty hard to do, and take much longer, but I suppose if some were so inclined they could scan their handwriting and send it to whomever is blessed with this arduous task.
I personally have no problem having "Trizzak - Tristan Tapscott" typed in. The only real signatures I see fit to definitely have on there would be the card designer and our beloved site administrator.
Just my two cents