Verrückter DrachenA crazy octahedron with extensions to give it the shape of a deltoidal icositetrahedron which is a catalan solid.
VierzackAn Ultimate Skewb with uniform extension on four sides. Very similar to the Doppelkeil but independently invented.
VulkanA 3x3x3 in shape of a Vulcano.
Wildschwein3D-printed pieces glued onto a skewb giving it the shape of a boar.
Windmill TetraA Windmill Cube transformed into the shape of a tetrahedron.
Wolf3D-printed pieces glued onto a 1x2x3 giving it the shape of a wolf.
World Skewb (228 mm)A giant skewb (fourfold edge length of the original skewb) with stickers customized after the pattern of Hexa World.
ZeppelinA Square-1 with 6 layers. The extensions are designed to transform it into the shape of a the namegiving aircraft.