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Eight-Sided: Octahedron
Octa-Skewb 2.0A fishered Skewb Diamond
OctaStar IIThe successor of the 24-Octahedron. A hybrid puzzle that adds the axis system of a Magic Octahedron to the Little Chop.
OctacleThe concept of the Trifurcation Cube applied to an octahedron.

Octacle CrystalA deeper cut version of the Octacle (from the same designer)
OctadotA curved cut version of Trajber's Octahedron.
Octahedral FloppyA Floppy Cube in shape of an octahedron.

Octahedral KilominxA straightforward shape transformation of the Kilominx.
Octahedral Mixup I Plus CubeA Mixup Cube in shape of Greenhill's Octahedron
Octahedral Mixup II CubeA Mixup Cube in shape of Trajber's Octahedron

Octahedral ToruA Toru in shape of an octahedron with spherical cuts.
Octahedral extended RhombicDodecahedronSkewbA rhombic dodecahedron skewb with 4 faces "deleted" be extending.
Octahedron 2x2x2A non-platonic 2x2x2

Octahedron 3x3x3 aka Greenhills octahedronAnthony Greenhill's octahedron build-up of a 3x3x3 cube.
Octahedron 4x4x4The concept of Greenhills Octahedron adapted to a 4x4x4.
Octahedron 7x7x7A 7x7x7 in shape of an octahedron.

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