Master Curvy Copter PlusAs the name suggest this puzzle combines the properties of Master Curvy Copter and Curvy Copter Plus.
Master Rex CubeA corner-turning hexahedron with 7 types of pieces. All cuts still intersect at the corners.
Master SkewbAn incredible creation by Katsuhiko Okamoto. A very rare puzzle for many years it became mass produced in 2011.
Master Skewb 3x3x3A hybrid puzzle of a face-turning and corner-turning hexahedra. In this case the cutting depth of a 3x3x3 and a Master Skewb are combined.
Mayan CubeA 3x3x3 which implements a new way of bandaging. It makes use of many beautiful L-shaped pieces.
Mercedes CubeA 3x3x3 with unusually cut circles which can be turned independently.
Mercedes Cube IIIt looks very similar to the Mercedes Cube I but this combines cornerturns with turns of the circles.
Mess Cube 4An Eastsheen 4x4x4 modified to look like a 5x5x5 it internally is. The internal bandaging was removed and replaced by an external one.
Micro 24-CubeAlso known as "Little Chop" but with an edge length of just 30 mm.
Missing Edge VoidA Void Cube with one edge removed. It works like a bandaged Void Cube.