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13 sided polyhedronA skewb extended with plastic sheets and thereby transformed into a highly irregular polyhedron but still a convex one.
1x2x3A very simplistic cuboid but a must for completionists.
2 Layer Super Square 1A super Square-1 reduced to 2 layers.

2x2x2 X-CubeThe 2x2x2-variant of the X-Cube.
2x2x2 X-Cube (spherical)The concept of the X-Cube adapted to a 2x2x2 with spherical cuts.
2x2x4 Sliding BlockA sliding block puzzle with an unusual size.

2x2x5Another cuboid in the 2x2x6. Implemented five years after the 2x2x6.
2x2x7 (regular cubies)The 2x2x7 made by Tony Fisher is a late follow-up to his 2x2x6.
2x3x5A cuboid made from a 2x3x3. The original puzzle received two new layers of pieces.

3 Square in 1Three samples of a Square-1 combined with what looks like a 2x2x2.
3D-Skewb cubeA mass produced piece shuffle. The pieces of a skewb and a skewb ultimate were exchanged.
3x3x3 Circle CubeThe crazy version of the 3x3x3.

3x3x3 Triangular PrismA 3x3x3 truncated on 3 edges and afterwards extended. The result has a shape like the triangular prism.
3x3x5 OctahedronA variation of the 3x3x5 (by that time no mass produced puzzle!) inspired by Trajbers octahedron.
4 Centers Bandaged 4x4x4A 4x4x4 with two blocks out of 4 center pieces.

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Rubik's Void

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Brain Twist
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