Mess CuboidA mass produced 3x3x5 twisted into a pattern and afterwards extended.
Metal Ghost CubeThe inventor of the Ghost Cube rebuilts his creation - in metal.
MF8 Square-1MF8s version from 2007. Produced in five different colors.
Micro Axis CubeA very popular shape transformation of the 3x3x3 dramatically reduced in size.
Mie Axis CubeA cubic 3x3x7 moved into a pattern and modified back into cubic shape.
Mirror Block 7x7x7This is a shape modification of a 7x7x7 cube that implements the same concept as the Mirror Blocks (aka Bump Cube).
Mirror BorgA bump cube (aka Mirror blocks) transformed like the borg cube
MirrormorphixA Mirror Blocks transformed like a Reuleaux tetrahedron.
Mixup 2x4x4Looks like a 2x4x4 but like the Mixup Cube allows strange moves.
Mixup 3x3x5A cubic 3x3x5 that allows an additional mixup turn.