I spray painted the outside case of the last featherweight I got...It already had swipes of yellow paint on it...a painter had gotten it in liew of cash for a job and I bought it from his mom...figured I didn't have anything to lose and it already had some yellow on it....covered up nicely...just had to do it outside where there was ventilation and a place to leave it to dry undisturbed. Turned out fine, or acceptable anyway.