Hello everyone!

I have a question here. when talking about dynamics & special effects, I'm a total noob. I have seen free tut about ring of fire, but I'm still too dumb to make "flaming eye". You know, the kind in LOTR? Well, actually, my goal isn't to make that kick ass effect (well, I would like, but I'm too stupid for that at the moment ), I would just like to know how could I make a fire in a specific shape? I made a verry simple eye-like shape with polygons, and now I would like to somehow apply fire effect to that shape. Can anyone help me here? Tnx.

Zocky