Sonobe Stellated Octahedron (12 units)
This Sonobe stellated octahedron is made with 12 Sonobe units (created by Mitsonobu Sonobe). The Sonobe unit is very versatile and can be used to make all sorts of polyhedra such a hexahedron, a stellated octahedron, a stellated icosahedron, and many other irregular polyhedra.
Learn to fold a Sonobe unit here. Beginners should use 3 colors of paper: 4 units of each color.