QUOTE(underthetire @ Apr 15 2010, 08:35 AM)
Hell, you could probably make one on a inkjet printer with the sticker sheets. I know my epson uses some kind of water resistant ink.
You would need to use a plastic or plasitcized decal material with a clear cover sheet over the ink, but even that may not stand up to the heat in that engine bay & generated by the coil "in action"!
Check with George &/or others on what they've used to print on for the engine bay decals in similar heat & harsh conditions.