Currently running on Kickstarter, Firefly replaces the toothpick insert on your Swiss Army Knife with a firestarter. It features a bright neon yellow-green, glow-in-the-dark thumbnail grip.
Available in two lengths, they’ve tailored the sparking material mix to double the break strength of a typical ferrocerrium/firesteel mix. You can use any of the tools on the knife to strike a spark with the Firefly.