Bubble PentA boublesized corner turning pillowed pentagonal prism.
Bubbles in a planeA 2D-puzzle that works only because it was fudged and still it demonstrates jumbling.
Canny UncubeA semi-cubic twisty puzzle with only five turning faces.
Cheese BlockA prism with 3 layers, 14 segments and the shape of a cuboid.
Chilen CubeA two-layered pentagonal prism with spherical cuts.
Coin Chest PuzzleModified version of Treasure Chest to allow coins be placed into it. One face was replaced and two corners were cut into.
Combo CubeA combination of Peters Black Hole and the Rubiks Cube.
Concentric CubeThree 2x2x2's in one puzzle. Some of their corners are fused to each other.
Crazy CometA jumbling twisty puzzle based on the geometry of a Rhombic Dodecahedron.
Crazy SixThe concept of a Circle cube applied to a 6x6x6.
Cube BouchonA 3x3x3 which opposite sides are connected with gears. These gears make the sides to twist in different ratios during one full turn.
Cube TwisterEight 3x3x3s connected into one massive puzzle with interconnected movement.