If you don't find an actual Colt/Mirage piece for your window crank, many cars shared this type of part.
At the local Canadian Tires, there was a little part section with boxes labelled "HELP".
They contained pieces like window cranks and also the trim piece that goes behind them.
I would suspect that any late 80'searly 90's era window crank from a Mitsu or even maybe Hyundai would work.
IIRC, those spacers were black on our cars, regardless of door car trim?
I looked it up in ASA, this showed up:
67203 MB726650 Escutcheon front door window regulator handle quantity 2 black
Follow the cookie trail:
http://www.partsbase.org/parts/mitsubishi-mb726650/
amayama.com
http://www.amayama.com/search?region=315&q=mb726650
Japan, if it's stocked.