This Nauto papercraft is the Chidori (Neji Hyuga?), designed by blackignus. The Chidori is Kakashi Hatake's first original technique, though he more frequently uses an S-ranked version known as the Lightning Cutter. He created it around the time he was promoted to jōnin, and later taught it to Sasuke Uchiha.
Neji Hyuga is a member of Team Guy and a child prodigy of the Hyuga clan. Despite his natural talent, Neji's membership in one of the clan's lower houses leaves him ineligible to learn the clan's most secret techniques. At the start of the series, Neji openly hates the main house because of this, readily attacking its members verbally or physically when given the chance. At this point in the series, Neji believes in a fatalistic philosophy: that one's destiny is inescapable and that a weak person will always be weak. After being defeated in battle by Naruto Uzumaki, a character that has proven his "destiny" wrong by getting stronger, Neji has a change of heart. He abandons the idea of a predetermined fate, and resolves to get strong enough to never lose a battle. He also tries to remedy the estranged relations between himself and the members of the main house, resulting in his training with the leader of the main house at the end of Part I.
You can download this cube paper toy from here: Nauto - Neji Hyuga and Chidori Cube Craft Free Paper Toy Download