A friend introduced us to candles from k. hall designs, based in University City, Missouri. Made of pure vegetable wax, we are loving the "moss" scent right now...
From the site: This blend is denser than straight soy with all the positive attributes without separating or being mushy. An all cotton core wick ensures a long, clean burn. With an aluminum cover. Burns 60 hours.
See k.hall's selection of printed candles as well.
Read a 2006 review on AT:LA about k. hall's scent diffuser sticks.
Available in Chicago at Art Effect, Monarch's Heaven and Komoda.