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Eight-Sided: Octahedron
Okki Gem IIA 2x2x2 Octahedron, also called a Gem or Okki, but with a color pattern reminiscent of the Alexander's Star puzzle.
Pillowed Octahedron (Megaminx)The second megaminx in octahedral shape. This one was made in CAD with a pillowed shape.
Polka-Diamond (aka: Okki)A small octahedron-shaped 2x2x2.

Professor Greenhills OctahedronA 5x5x5 truncated and extended into the higher order equivalent of Greenhills octahedron.
QJ OctahedronA 3x3x3 in shape of a non platonic octahedron.
Rainbow octahedronA rainbow cube with the squares "deleted" by extensions.

Rob's OctahedronAn octahedral variant of Rob's Pyraminx
Royal OctahedronNot the first puzzle with the axis system of a corner turning cube and five logical layers. But it is the first one in shape of an octahedron.
Sharp Octahedron (Sharp Edges 154000AA000)A 3x3x3 truncated on eight edges and afterwards extended. The result has a shape of an non-regular octahedron.

Skewb DiamondMeffert's build-up and truncation of a Skewb into an octahedron.
Skewb Diamond (transparent)Transparent version of Tony Fishers skewb in shape of an octahedron.
Solar OctahedronA very difficult edge-turning octahedron.

SquarhedronA Square-1 (or more precise: a Star Prism) in shape of an octahedron.
Sudoku DiamondThe concept of Sudoku applied to a Skewb Diamond.

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