RODMAN’s M2 folds a 67-layer Damascus steel blade into a grade-5 titanium handle small enough to vanish on a keychain — 56mm closed, under 19 grams. The front edge doubles as a bottle opener shaped like a shark’s open jaw, and four slots in the handle hold tritium vials (sold separately) for a faint glow in the dark. It’s currently a Kickstarter campaign, with the base pledge at $29.