Online since 2002. The most comprehensive site for all around twisty puzzles.

Octagonal Prism Key ChainAt 30 mm, this key chain version is approximately half the size of the standard version.
Octahedron 3x3x3 aka Greenhills octahedronAnthony Greenhill's octahedron build-up of a 3x3x3 cube.
Octahedron AxisA 3x3x3 was transformed into an Axis Cube which was transformed into an octahedron.

Octahedron WindmillA Trajbers Octahedron twisted by several degrees along its main axis.
Octaprism IA 3x3x3 "fishered" within an octagonal prism.
Octopus attackA 3x3x3 puzzle under attack of an octopus.

Odd Colors Bandaged Mirror BlocksA bandaged shape and sticker variant of the 3x3x3. Similar to the "XX of Wander" presented by the same creator.
Odd CubeA piece shufle of a 3x3x3 and a newly designed spherical 3x3x3.
Odd Extended 3x3x5A 3x3x3 with two additional layers glued onto it just by extension.

Odessa CubeA white 3x3x3 with tiles and packages out of transparent plastic.
Offset 2x3x3The concepts of the I-Cube and the One-plane-bumped-cube combined.
Offset 4x4x4A 3x3x3 with additional cubies, pretending to be a 4x4x4.

Old Brand Magic Square (Octagonal Prism)A very low quality tiled Octagonal Prism.
Old Wilson PlaceA 3x3x3 designed to resemble a haunted house.
Oliloy cubeA 3x3x3 with two opposite truncated corners, together with its 3 surrounding edges and diagonal cuts in 6 edges and 6 corners.

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