I finally got around to uploading photos off my phone and thought I'd share this. I had been looking for some chrome tips that screw over the existing tips as these were looking pretty bad, then i spoke to a buddy of mine who had successfully polished some bits on his bike, so i thought I'd give it a go. I spent quite some time polishing the factory tips on the muffler, probably 30 minutes per tip. Unfortunately i don't have a before shot, but here's one half way through the process.
and here's a finished shot (had to move it inside, mother nature wasn't cooperating)
Used a dremel with a polishing wheel and autosol metal polish and a microfiber cloth combined with a lot of elbow grease. I think it doesn't look too bad, at least until I get an aftermarket exhaust installed.