Master PuckubeA shape variant of the Super Square-1 inspired by Tony Fishers Puckube.
Master Random AxisThe third 4x4x4 "axised" by the inventor. In this case the axis system was tilted in a random fashion.
Master Windmill CubeA 4x4x4 twisted inside of its solid. It resembles one of Katzuhiko Okamoto's most popular creations.
Math CubeA shape variant to a mini 3x3x3 cube
Maybe CubeLike a modified Babyface Cube. The faces can't be turned but the moves that are possible allow for 45° steps.
Mega Axis Cube 3x3x3A 3x3x3 with three additional layers of cubies and transformed into an Axis Cube.