Mini Master OctahedronAfter the Master Octahedron from the same inventor another 5x5x5 transformed into the shape of an octahedron.
OctadotA curved cut version of Trajber's Octahedron.
Octahedron AxisA 3x3x3 was transformed into an Axis Cube which was transformed into an octahedron.
OctahinxA Megaminx in shape of a octahedron.
OctaminxA fairly accessible custom build based on the Pyraminx.
OctaStar IIThe successor of the 24-Octahedron. A hybrid puzzle that adds faceturning abilities to the Little Chop.
Okki Gem I (aka Alexanders Gem)A sticker variant of the Okki which transforms the puzzle back into a puzzle equivalent to the 2x2x2. Produced in East Germany but often customly remade.