I was thinking classic red/yellow on matte black. Also was thinking he might like that metallic purple with maybe a silver, and that way it will kind of match the purple one my cousin wants.
I think CTJ told me that Jeff could print metallics if requested. I think he's planning on two big Chucks, the matte black matches his hotrod and the purple one (I think) matches his Harely (or rather the pieces of his Harley that have been a work in progress for about 10 years lol)
There are ton of neat ones I've found, but the are pictures applied to cars, which makes it hard to extract. I tried doing it from the ground up a couple weeks ago, and although they were cool, they didn't really look like flames lol.