Those I do not make. I could make some clear rock guard pieces, but the only real heavy duty and thick vinyl out there is for the clear chip guard material, and nothing really thick and heavy duty in black. If you want your chip guards black, but also want them able to stand up to rock chips, you would have to get a set of thin black vinyl. then also a set of thick, clear, rock guard vinyl, and put the clear ones over the black.
Cost would probably be around $20 for the black set, and about $30 for the clear set.