Houlis CubeA puzzle which is based on the fourth dimensional symmetry 4D polytope known as hexadecachoron (or 16-cell).
Küblbeck BrainballAn advertisement for whole sale traders for car spare parts in east Bavaria and Upper Austria.
Magic ClockA rare variant of Rubik's Clock of unknown origin and date.
Orbik, TheIPP-exchange puzzle similar to Jugo Flower.
Pantazis' MatrixThis is an implementation of the full symmetric group S4 as a twisty puzzle. A puzzle without restriction like parity issues.
PegasusA puzzle which is based on the fifth dimensional symmetry of the 5-Simplex.
PlanetsFour balls in a frame. Craters on each ball block and unblock rotation of the adjacent balls.
Planets 2.0Inspired by the original Planets from the same inventor.
Pyramus & ThisbeA puzzle which is based on the fourth dimensional symmetry (edge-transitivity) of the 4D polytope Tetrahedral prism