I was wondering if anyone would catch that. Actually I work at a facility that manufactures satellites for commercial and military applications. I am always at one NASA facility or another and have worked on the space shuttle tanks, engines and the spacecraft itself many times and well as a few other interesting unmentionable projects. In doing so I have picked up a few discarded things along the way over the years. As for the object of interest there is a material that certain parts of a satellite are machined out of that is designed to withstand the extreme temperature changes and radiation bombardment of space when mounted on the outside of the craft. I picled up some scraps from the waste bin many years ago from the machine shop while I was there doing some inspections. This stuff is HARD. Even though I have plenty I will not attempt to make another pen with it. It polishes up to a shiny black though. I thought about pictures AFTER I gave it to my outgoing boss, so sorry, no pics. It did look great on a Ti Black Cigar. I guarantee there is not another pen like that anywhere in the world. They stopped using that stuff because it was so hard to machine. I have the last scraps in existance.