Anodizing
I’m using the Moonlite Anodizing kit, and although I have nothing to compare it with I think it works just great. They have a great how to, so I won’t try to explain everything. I’ll just post pictures with some captions, showing the lowers being anodized.
http://www.focuser.com/anodize.html

The lineup.

Prep the surface, and clean. Submerse in 140 degree cleaner for 5 minutes, then rinse well.