Here Is My Maille Pen
Titanium Contained Inverted Roundmaille with a pen cartridge pushed into the center. I found a metal front piece of a pen I liked and took that off to grab with the pattern as well.
I actually used rings a bit too small, so it was too tight and I could only contain a ring in every 3rd location. For those of you who have made Contained Inverted Roundmaille, you should know what I am talking about.
There is also a Tibetan Quarts Crystal in the end with a Clip on that end that I normally use to clip onto my wallet chain. I can't just put it in my pocket because I haven't found a way to skillfully make a cap for the pen yet.