And then, sometimes, you make it into keychains. https://www.tecaccessories.com/collections/tritium-isotope-fobs https://www.tecaccessories.com/collections/tri

And then, sometimes, you make it into keychains. https://www.tecaccessories.com/collections/tritium-isotope-fobs https://www.tecaccessories.com/collections/tritium-isotope-f...