Nothing special here: the fabric on my a-, b- and c-pillars is detaching from the trim pieces on both sides of my '04 coupe.

I know about the really expensive option (buy OEM replacements) and the really cheap option (buy a can of rubber cement). Anything in between? Are there any good resources for how I might scout for those trim pieces coming out of parts cars or other used sources? Color needed is black.

Thanks!