There can't be too may options, they're not chromed, so it leaves paint or annodizing, if it's paint nitromores, if it's annodized then caustic soda will take it off (careful with the mix though :shock: )
Theres a few good threads for that, Andy L's cooks refurb and IIRC defiant has a post or a spot on his blog about ano removal. Also there was a guy??? the one with the ibis bow ti that would water jet logo's too.