Purchased from Mefferts, 2009.
(plastic, 2 inches across minimum dimension;
2.75 inches across farthest points)
Like Rubik's 2x2x2 Rubik's 2x2x2 cube with each corner cut diagonally in half so that the three corner faces become a single face. It is shipped with a solved state of two adjacent yellow faces, two adjacent red faces, two adjacent green faces, and two adjacent blue faces. Mix it up, and then any solution method for Rubik's 2x2x2 can be used.