Body Art Forms. They carry all kinds of body jewelry, from belly button rings to septum spikes. Got a hankering for pyrex plugs for your stretched ears? BAF has them. Maybe a pair of spirals made of stone or horn? BAF has you covered. Every time I go to their site, my inner raccoon says "OMG SHINY THINGS!" and I end up browsing through tons of items - even stuff I can't actually wear - until I fall into a drooling retail coma.
BAF is especially awesome because they let customers post reviews and photos of the products. These pics and opinions have played a big part in helping me decide what to buy - and so far I've loved all of my purchases!
Also, Body Art Forms sells their stuff for much, much less than my local piercing shop does, and since it's a website I can shop naked, which my local piercing shop seems to frown upon. So there's that.
Everything I've bought from BAF arrived pretty fast...within a week or two, I think. And although I've never had to return anything, there's a lot of feedback from customers who say that BAF's customer service is great and that returns are quick and easy.
I'm gonna go ogle their waffle-texture rainbow dichro plugs some more and wonder if it'd be worth stretching my ears a bunch of sizes bigger so I can get them.