I may have a set i'll look. the knobs arent perfect, but i found if you have a plastic polishing kit . I buff the knobs , or you can use tooth paste and polish the plasic. then paint them with "chrome paint" light coats. then let it dry real good , sit it in the sun. then polish it again. when it looks nice and shiney. put a couple light coats of clear to protect the silver. its not quite a chrome look , but it does look real nice.
