This SSBB paper craft is a mask of Meta Knight. It is designed by Objsolid. Meta Knight is a character from the Kirby universe, and is often seen as Kirby's rival or sometimes mentor.
Meta Knight is a major character in the Kirby video game series developed by HAL Laboratory. Kirby's Adventure was his first appearance, although Meta Knight was not given a name until Kirby's Avalanche, released in 1995. He is a mysterious character and is seen as both a hero and a villain in the series.
Meta Knight's mask breaks almost every time Kirby defeats him, revealing a Kirby-like face underneath. The only difference is that Meta Knight's facial features are pure white and his face is blue. His mask gives the wearer's eyes a yellow-ish tint; it makes Meta Knight's white eyes yellow and Kirby's blue eyes green, as revealed by various Kirby games.
Meta Knight also wears a cape that can turn into wings, which he uses it to fly around. On certain occasions, he will take off his cape in battle.
You can download this papercraft from here: Super Smash Bros. Brawl - Meta Knight's Mask Free Paper Craft Download