There's an alternative to laser engraving that you may not have heard of: Pneumatically-powered dot peen marking machines. These produce the engravings mechanically via micropercussion, and it's pleasing to watch in action:
If you don't like the dot-matrix aesthetic, they can also produce much finer engravings:
They also make nifty handheld versions:
This is one of those machines where if I owned one, everything in my house would be marked up.