This should be something a lot of those little Mall stand places might be able to do. At the Little Rock mall, there is a place at the mall where they can etch any metal you have - with a photo you bring in. They usually do little flat dog tags, or things like that, but if they can do dog-tags, they can do a Zippo Lighter.
Anyone know what I'm talking about? Usually they are in a stand, in the hallways in local Malls.
Hopefully someone will know. Otherwise I am just talking to myself.....
:confused