It hasn't worked entirely right, yet anyway. I created a new group "I, Quaid", for the sole purpose of getting it to appear in my Mugshot page stacker. It also appears in my Mini Mugshot on karstenwade.com. Instant home page, thanks.
I started this because I wanted to give out a feed of some great songs I'm listening to, without overwhelming by giving a continuous feed. *yawn* Pandora lets me bookmark a song or artist as I'm listening to it, and I added those as feeds into the new group. So far, my Mugshot client stacker is working fine, as is the one on my Mugshot page. The mini/badge isn't picking up the songs yet, but I'm hopeful. :)