Rota CubesThree cubes in a tetrahedral case. With every move they not only change position but also orientation.
RotopuzzThis hex-shaped, 3x6 Whip-It puzzle is about 72 mm tall.
Rubik's Tower TwisterAnother version of the Sliding Tower in different size, produced under the Rubik's label.
Rusty TowerA remake of the Babylon tower but with bandaged grooves.
Saturn (Belgian)32 disc-like pieces that have to be grouped in six groups of four pieces on two rings.
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