FYI I found, after trying many different brands... that Canadian Tire's "PAINTERS TOUCH" Black paint matches the civics stock interior plastic color almost perfectly, like 99%. It even has a similar texture!

Once I used it to paint 6 sets of wipers so far and its worked great. I tried one set using an acyrilc primer and then the Painters Touch and its still holding up after 3 years. (my car)

Once I even used it without primer and its still holding up (2 years now, on my brothers car).

Once I tired it without sanding very well (only steel wool) and let it dry indoors for one day, then put it on my car in the cold and now its chipped off at the rivet joint on the wiper Serves me right for being lazy.

Overall, its a great paint when used properly and is cheap too.