Active Duty Navy Chief here and there are quite a few good ideas on this thread. I make quite a few pens using woodpenpro's custom clips and they are very popular. Be careful with the warfare devices though, there is a qualification required to wear the device. If you shop arizonasilhouette the elegant american on page 4 adds an option to the european pen for using the custom clips, and trust me, the CMC loves his anchors(E9). if you shop woodcraft the same pen is called the hart double twist. uses the easyflow parker refills very nicely. i use ash in my pens for the Chief's because its very close in color to khaki and we pride ourselves on moving out of our blue shirts and into the khaki ones. officers are a bit different, they wear khaki's also but those would not have the gold stripes mentioned in an earlier post. only the dress uniform would have those unless you are referring to hash marks and in order to do those you would have to know how long they have been in the navy. one for every 4 years. well, i think this post is confusing enough, i hope it helps and good luck. to be honest though, they are navy, they will love just about anything hand made. the effort means more then most.