You can easily find instructions to make your own Assassin’s Creed-style hidden blade, but if you don’t have the skills to put one together, check out this life-sized replica by prop maker NECA. It’s not made from steel, but I think we can all agree that that’s a plus.
The replica is based on the armored vambrace worn by the assassin so nice you played as him thrice Ezio Auditore in Assassin’s Creed: Brotherhood. It’s made of PVC and ABS plastic, has buckle and velcro straps and a scary effective spring loaded mechanism that pops the blade out quite quickly.
Yikes. Even if it has a safety lock I’d be more comfortable if the blade was on the upper part of the gauntlet, Wolvie style. You can pre-order the replica from GameStop – where assassins shop and trade-in second hand weapons – for only $40 (USD). Reckless play will cost you a lot more than that.