Ok, I've found what I was looking for.
That's a metal plate I made for the coffin table that I made.
In person you can see how the letters recess into the metal, not visible in the pic.
Here's a post I wrote on a bike forum of some light I made, there's some more info on the etching process there:
http://www.customfighters.com/forums/showthread.php?t=27905