Almost anything.

If you can imagine it, then chances are it's for sale at the Bazaar. There are some things we don't sell for certain reasons. Adamantine, for example, is an ancient metal of extraordinary strength and isn't available for sale. For the reasons why this, and other special materials aren't readily available in the Bazaar, please see Question 7.

If you wish to submit your own materials or items, you can do so using the Bazaar Submission Form.