We've added CNC engraving capabilities to our shop. We are able to do steel or aluminum up to 4x8 feet. Here's a business card holder I made as an example of our work.
(http://i197.photobucket.com/albums/aa63/Griffs_photos/20160621_121452_zps3uryulyd.jpg) (http://s197.photobucket.com/user/Griffs_photos/media/20160621_121452_zps3uryulyd.jpg.html)
That's pretty cool.