I'm making themes for various projects, usually wiki engines. I have made a number of styles of Oddmuse, you can see them at Oddmuse Zen Garden. There are also some themes for MoinMoin wiki engine: Europython Mandarin, Gugiel, Modernized, MFact.
I used to style/theme web pages as a part time job, you can see a few of the websites that still use my styles below. Please note, that they are usually rather old and that I have removed many websites that no longer use my styles.
While I dabble with web applications all the time, those listed below have the status of "production ready".