+1 to the brushed metal idea, something from The Aurora Project (or a similar place, I think Allparts or WD to brushed 'plates as well), and black is alright, but I do like white on it, so white perloid would be another good one.
Brown tort might work on it, red tort is too garish imo.
[s]Odd suggestion, how's the routing under it? Perhaps it would look alright with a cut down control plate on it (someone on here does it to their P's, looks pretty good).[/s]
Just read it's a MIM, which means gaping route to the pup, so ignore this little suggestion.