Why yes actually – dang, you and I are on the same page today! I was going to make a quick post to ask an expert in laser etching what they would recommend we purchase as we’d like to offer etching as a service for these, but tbh, we have no idea where to begin 
I’ll make a separate post and link back here for reference.
Thanks for the help!
Edit: Post link: Laser Etching Machine Recommendation