When I was active duty, I made this Reactus Maximus Design.  It had a "thumbs-up" reactor, glowing in electricity, with banners top and bottom that read "Reactus Maximus:" kicking nuclear ass and taking names!

Earlier this year, I was made aware a challenge coin had been minted using my artwork to commemorate the deactivation of the USS Enterprise (CVN-65).  Some 14 years later my design had still found some relevance! Flattered...  I found someone "in the know" and am now the proud owner of one of the challenge coins!

Actual Coin: