BONUS HAS BEEN EDITED TO INCLUDE NEW INFO
Yes I'm talking about the Assassin's Creed Hidden Blade, note that this design will extend out to how far you flex your hand, will retract when you let go of the trigger and lock if you choose to continue to the Bonus and read how to make it lock.
If you have any questions feel free to ask!! <3
Please don't go around stabbing people and such this is purely for cosplay, I'm in no way responsible for your actions, or what you do with this design.
A big thanks goes out to :iconicedsteelwolf: for not only helping my on this project but figuring most of it out, grazie a mia fratello non avrei potuto farlo senza di voi.
***New Video Included on how the blade looks when it extends and retracts***
How to make the Hidden Blade.
Heres the links to the picture tutorials, accompanied with the written tutorial making you