Make Pnj's /Mobs Costume parts available for players

[Necate]

Hello,

I saw lot of pnj and mobs with costumes parts that are not available for players. For exemple, i saw a mob with a katana on the back, i saw another mob with holsters on the legs (E.G Maëlstrom).

So i tought to myself it will be awesome if my hero can have a katana on his back or gun's holsters on his legs. Is it possible to makes this costumes parts available for players ?

 

Thx !