Sawdeanz, I saw where you bumped up Johans post. That was the one I was referring to. Thx.
Perhaps I should have posted the link to where I got there from. It's at www.dynamicdioramas.org/modelindex.html
This guy, it turns out, works for Disney. No wonder.
I've got a left-over 1/4 can of Great Stuff in the garage that I might play with this weekend. You might be on to something there. Run a wire attached to a diode up a piece of coat-hanger for the flame area and cover it all with spray foam. Scrape and mold 'til it looks right and finish. Hmmmm. I've only ever coated Great Stuff with house paint but, it seems to readily absorb it and holds well.
Let's figure this out before I lose more sleep.