Bram's Cube is an idea by Bram Cohen to add eight gears to a 2x2x2 Rubik's Cube. When the top is turned by a quarter, the gears turn by one eight. For solving this puzzle, not only the 2x2x2 has to be turned to its correct position, but also the gears. This gives a classical puzzle a whole new dimension.

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Mixup Cube is like a Rubik's Cube, but with an unexpected twist. When a mid plane is turned by 45 degrees, other turns are possible. This way of turning mixes up the center and edge pieces. Although the concept has already been patented in 1985 by Sergey Makarov, this version has an internal 2x2x2 "cube" for extra stability.

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Gear Shift is based on an idea by Bram Cohen. This puzzle has eight gears around a cube. All gears can turn together. But it is also possible to pull the gears apart in two sets of four. Each set of four can be turned individually. And there are three ways to split the gears. The object of this puzzle is similar to Rubik's Cube: scramble it and then try to solve it.

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Or buy the mass-produced version of this puzzle is mefferts.com.

Geared Mixup is a twisty-puzzle design requested by many people. When playing the original Gear Cube (Caution Cube), players can only make half turns because of the gears. Many people tried quarter turns in vain. Now it is possible, by combining the Gear Cube and Mixup Cube concepts. Geared Mixup has eight geared corners that drive twenty small 4-teeth gears.

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Take Five is an innovative five-band ring design by Bram Cohen. Size 8, 18.54 mm inner diameter.

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Fadi Cube is a twisty puzzle like Rubik's Cube. It is an attempt to use other than conventional slices to make a twisty puzzle. At first sight, it looks impossible to twist this puzzle at all. But the pieces go over and under each other to make it possible. According to Bram Cohen, the closest "relative" of Fadi Cube is Katsuhiko Okamoto's Lattice Cube.

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Or buy the mass-produced Mosaic Cube version from Mefferts.

Big Boulder is a blatant case of twisty puzzle extremism. 1 core, 60 centers, 140 corners and a whopping 150 edges. That is a lot of pieces. And to make it more complex, this puzzle jumbles too, which means that some moves may be blocked by other pieces. This puzzle is based on the geometry of a Pentagonal hexecontahedron. You may want to look that up on Wikipedia. The object of the puzzle is to scramble it and then solve it to a state where each color only touches itself or black.

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Big Boulder has the following parts.
-2x Set 1
-2x Set 2
-1x Set 3

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Jack's Cube was suggested by Jack via YouTube. The design was inspired on the Magic Sphere puzzle. Jack's Cube has three types of moves. First there are the conventional Rubik's turns. Secondly, a circle of nine pieces can turn in steps of 90 degrees. Finally, a great circle of 12 pieces can turn in steps of 30 degrees.

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Read at the Shapeways Forum.
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Please contact Oskar directly if you are interested in obtaining a fully colored, stickered and assembled sample of this puzzle.

Weave Five is an innovative five-band ring design by Bram Cohen. Size 8, 18.54 mm inner diameter.
Metal version
Nylon version