Cubes on a DiskTwo 4x4x4 connected with a disk which allows to exchange pieces between the puzzles.
Cubie Chaos 1A small number of Eastsheen 2x2x2s joined and extended to form a 2x4x5 block which poses a new kind of challenge.
Cubie Chaos 2A small number of Eastsheen 2x2x2s joined and extended to form a 3x4x4 block which poses a new kind of challenge.
Dumbbell CubeTwo 3x3x3s connected with a complex mechanism. Every turned side is followed by one side of the other cube.
Dumbbell SkewbTwo Skewbs (or better: Holey Skewbs) connected with a complex mechanism. Every turn is followed by one turn of the other Skewb.
Evil mask cubeA fused cube, extended to become a 4x4 evil twins cube. After that it was shaped and stickered to look like the 4x4 mask cube.
Evil TwinA Fused 2x2x2 with additional cubies.
Evil Twin 4x4x4A Fused Cube with additional cubies glued on to create the illusion of a 4x4x4
Fortress CubeA fused puzzle which combines two different puzzles.