Not that you would do it but, a couple of years ago, they were engraving names into cues in Vegas.
My opinion is or was that they looked ok as far as the actual finished product was concerned but still looked kind of Cheeseoid.
Trophy shops have computer engravers. I believe that I looked at prices on the Net and on EBay. They are affordable but you yourself have to look at the product and see if that is what you want.
I mean, just because I didn't particularly like the one that I saw doesn't mean that you can't do them nicely or that they can't be done to everyones satisfaction.
You could do the engraving and fill them with colored epoxy or how ever you wanted to fill them. That may turn out decent.