The first wind chime sold off a site called Etsy. If you have never explored this arts and crafts site, it is well worth having a look. My own corner of Etsy can be found by clicking here.
Etsy seems to be increasingly popular for both artists and art collectors. It is the only site I have found (and I have tried many), outside of Ebay and my own website, with much action as far as sales. It is also a very user friendly site, both for browsing and for listing things for sale.