don't make it. only make black and red.. BUT what you can do is spray whatever it is(valve cover i'm assuming) with some black wrinkle paint. let that fully cure, then spray right over the wrinkle with normal high temp green paint. thats what i'm going to be doing except in a graphite color.

i saw someone use this method to produce a 'blue wrinkle painted' valve cover and it turned out beautiful!

goodluck bro,

Luke