painting or buying the mm6 tweet caseing

Systems

every body is remembers the silve tweeter caseing for the mm465's

well i also have a new pair of mm6's the case for the tweet is black, i want it to match the mm465's can i paint them and what paint should i use if any body else has done this to get a good match

or does polk sell it why did they have to make the tweeter case bigger in the mm'6's anyway?????

any suggestions

thanks