YouTube user ammnra engineered his very own Hidden Blade, the weapon used by the assassins Ezio and Altair in the Assassin's Creed series of games. He says,
- My version of the Assassin's Creed Hidden Blade from AC2/BH.
- I designed it in SolidWorks and made the parts with an Eden 350 printer.
- Based on a dual action Out The Front (OTF) Mechanism with a ring driven ratcheting pulley system to index the OTF Mech.