For almost every car I've owned, I've bought touch up pens and spray for the inevitable rock chips, scrapes, or worse that will happen over the course of owning the vehicle. However, the color on my Miata (Grace Green/Emerald) must be extremely rare, because no one carries pens or spray paint matching the color code, 18J. For the touch up stuff, I found an eBay vendor in the UK who makes some that matches perfectly. But soon I'm going to repair a few rust spots, necessitating a spray can of the color I need. I've found a few online vendors who will make a can of the stuff for a little over $30, but I've heard of places that will also do this for you on the spot. I've never seen any of these places, however. Does anyone know of a place I can go to that I can give a color code and they make a batch of the spray paint I want?