Hi Gary,
I know this post is old. I just joined and found your post and would like to offer an answer. Looking at the examples of the type of work you want to do involves precision work. In order to do that you will either need to sand blast or use a CNC table. They are quite expensive. You can look up CNC engraving to get the details. Otherwise, if you wanted a more "hand made" appearance then I would suggest using a rotary tool such as a Dremel. You can create your own templates or download templates. Using the Dremel is quite messy and kicks up a lot of very fine dust so wear a mask and goggles.
Hope that helps.
