how to make a flame in an insert in truck seat(cloth)

[Cheryl]

Nice Flames Bobby :-)

ROFL @ Scotty!  Good one!!!!!!

[Moparman]

I wonder how difficult this would be with the outer material that has to be trimmed away being leather?  I was thinking that maybe you could put some type of barrier between the outer material and the background material that would make it easier to trim away without accidentally cutting into the background.  Maybe a thin piece of cardboard?  I'm trying to do this very thing on a door panel with a "Z" emblem from the early Datsun z cars.  The emblem is just about to intricate to make it work.