Since the etching is slightly rough, you might be able to "paint" over it with a gold or silver oil based sharpie pen. It should polish off the smooth chrome, but stick to the etch.
I have not tested this, but I have gone through half a dozen silver pens. They are not the paint pens you have to shake. I think those would make a mess.
Maybe I'll try it, because i'd rather my black ones were silver. Worst case, paint thinner should take it off. If the logo is laser etched, thinner won't touch the logo.