Cornerless 6x6x6A 6x6x6 without the corners. The adjacent wing-pieces received additional stickers.
Cornerless 6x6x6 IIA 6x6x6 without corners. In this case the corners are not only truncated but their remains are hidden under the extended wing pieces.
Crazy SixThe concept of a Circle cube applied to a 6x6x6.
Cubic 3x5x7A 7x7x7 bandaged in two dimensions to emulate a cuboid.
Cubic 4x6x6A 6x6x6 bandaged in one dimension to emulate a 4x6x6
Cubic 5x5x7A 7x7x7 bandaged to in two dimensions to emulate a fully functional cuboid.
Cubic 5x7x7A 7x7x7 bandaged to in two dimensions to emulate a fully functional cuboid.
Cubic 7x7x7A V-Cube 7x7x7 modified to give it a true cubic shape.
Dia-Cube 6A 6x6x6 bandaged with a known pattern of a smaller bandaged cube in one corner.