Do we have a new champion, coolest ring I have ever made?  Previous contenders include the SR-71 Blackbird titanium ring, and the UH-60 Black Hawk helicopter ring.  This ring is possible because the marine fighter jock was able to provide me with a section of the barrel.   Anyone with access to these kinds of cool materials, lets talk.

As always, no joke, if you can source parts from a mission-flown SpaceX rocket, that is MY fantasy project.  Contact me, Mr. Musk!