I am selling a PHP Script which allows users to make a gmail sig.
There are no admin controls nor is there any "learning curve" it's really easy to edit the script, text font, copyrights, images etc. Once you have brought this script you can have your full, own copyrights on it.
I am aware that there are a few Gmail Sig Creators out there, but this is the actual script I made for it. And it's much more better than any I have seen.
Preview: [url removed, login to view]