Johanna,
As to E-bay, and custom leatherwork, I have not had any success with it yet. I have found that with what I make and sell is to expensive for E-Bay. I do use it to sell other things that I know will sell and I can profit off of. I also spend a fair bit of time searching for these things. But when it comes to the leather stuff, I find that most of the E-Bayers are looking for bargains.
What I do do when I sell something else on E-Bay, I will include in the sent out package a business card, and also a small catalogue that I made up. This has led to a few sales, an added interest in my work.
As most of the work I do is geared toward the "die haert" or "hard core" biker and his "chick", I've found that "word of mouth" has become my best advertising tool. As I've said before, a VERY large part of my business comes from wearing my own leather, and having people ask me where I got it from, when purchasing coffee at 7-11. I will also carry, and hand out a business card to every person I see riding a "Harley". I have contimplated doing the same to "Import" riders, but there's that little guy that sits on my shoulder that has a problem with that. I've been meaning to talk to him...but.
Ken