1/0 VoidA Void Cube with four pieces cut away.
1x1x3 Burger CubeAn improved version of the Screwball. The top and down parts of the puzzle can be rotated independently.
2x2x0A 1x2x2 made even easier.
3 Square in 1Three samples of a Square-1 combined with what looks like a 2x2x2.
3/4 of 4x4x4One fourth of an Eastsheen 4x4x4 chopped away in a puzzle that is still functional.
3D-Skewb cubeA mass produced piece shuffle. The pieces of a skewb and a skewb ultimate were exchanged.