Master Skewb diamondA master skewb transformed into octahedral shape. Also appropriately described as face turning octahedron with central face pieces.
Mini Master OctahedronAfter the Master Octahedron from the same inventor another 5x5x5 transformed into the shape of an octahedron.
Mirror OctahedronA face turning octahedron transformed like a bump cube aka mirror cube.
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.