This papercraft is a Han'nya Mask, from the the manga / anime / video game series Rurouni Kenshin: Meiji Swordsman Romantic Story (aka Rurouni Kenshin and Samurai X), the paper model was created by gankutsu-o-taku.
Han'nya is an Oniwanbanshu, ninja, under the command of Shinomori Aoshi. His specialty is espianage and disguises. His fighting style makes use of steel gloves and horizontal stripes on his sleeves, as well as Wolverine-like hidden claws. The stripes create the illusion that his arms are shorter than they actually are, allowing him to hit master evaders such as Kenshin.
He has crushed his cheek bones and removed his nose, lips, and ears, giving him a monstrous apperance. This is to allow him to "wear any face atop own." He was defeated and spared by Kenshin after his "arm stretching spell" was figured out and his claws failed to land a blow. He was later gunned down by Takeda Kanryu while assisting Kenshin rescue Takani Megumi. His head is buried on a remote, dangerous mountain along with his comrades' heads. [Source: wikia]
You can download this papercraft template here: Rurouni Kenshin - Han'nya Mask Papercraft Free Template Download