etsy

Etsy is a site for selling your handmade arts and crafts. You can sell anything that has had some personal attention. Signing up to sell is free, and they charge a dime per item, plus 3.5% of the sales price. They have some pretty nice flash interface sections (you can pick items by their color, the seller's location, or through a "sampler" gallery for example), and there are certainly some interesting items for sale there. Another cool feature is called "Alchemy", which is like an "Items wanted" classified section, where you can find people who want you to make the kind of stuff you make, or list thinkgs you'd like someone to make, and what you think a "good" price would be.

The site says it's in "beta" (test), so there are still some clunky spots, but I think that it's pretty cool overall.
Artists, check it out! http://www.etsy.com