Well, I've ended up getting a lot more fireflow denizens than I ever anticipated I would. My wife painted the first two sets of fire gels (they're so cute, she couldn't help herself) but I got to paint the third set.
Naturally, all of the more normal ideas were taken (you know, painting them as if they were some kind of fire, maybe even different colored fires). So I took an evening, and put on some Doctor who and here's what I ended up with.