I have recently found a very nice Internet market place, which is called Etsy.
It is a very interesting place, where you can find a lot of hand-made things, shortly, you can find everything what is possible to find in a street market ;)
This market place was founded by Rob Kalin in 2005. He, being a painter, carpenter, and photographer, wanted to find a marketplace to exhibit and sell his works on-line. As a result he has created his own Internet market, which is today one of the most known marketplaces on the Internet.
You can find a lot of amazing hand-made cases for iPhones there. There is one girl from Arkansas, United States, makes really cute and nice cases. There is a link Arete. I have bought one and very satisfied ;)
In addition, she sends a sweet card with your name, it very nice of her to do so.