Looper CubeA 2x2x2 with an additional layer of quarter loops. These pieces turn 90° with every turn of the cube layer.
MagnetocubeThis 2x2x2 cube uses magnets sliding in transparent tubes instead of coloured stickers. It was inspired by the Tokamak.
Maze Cube (2x2x2)A 2x2x2 custom sticker variation, filled with mathematical considerations, which shows a single closed loop line on it.
McDonalds 2x2x2A set of three 2x2x2 depicting current movies. Sold with Happy meals.
Mini TartanA quickly made variation of the Tartan 2x2x2 implemented with small dot-like stickers.
Miracle EightThis 2x2x2 cube has a metal ball for a core and eight pieces with magnets around it.
Mirror PresentA bumped 2x2x2 with a 3d-printed package that can be used only with the second solution.