He said OTHER than enjin haha, if you go on forums other than this one you can click peoples sig and it will most likely take you to the place it was made. there is also a thread on ffxivpro of someone sharing their sigs, you will fo seen them around, some even have urls in the actual image.

I was thinking of doing my own generator but letting the users create it and upload images, this be fore my ffxivpads, sig generators are really easy things to build.