Last night I mucked about with my insanejournal site, setting up my custom mood icons. I have two sets at present; the Pros set made by Nell Howell which I'm using atm, and a set of mood icons from The Sentinel which I made a couple of years ago. It was interesting to note that most of the happy/bouncy icons featured Blair, while the grumpy/irritated set were predominantly Jim. I know I didn't set out consciously to make them that way!
Anyway, if anyone would like a set of Sentinel mood icons to use, sing out.