Christmas DominoA cheap taiwanese Domino with two christmas based motives on its two sides
Circle 1x2x3A 1x2x3 with circles in the small faces. This doesn't change the puzzle but looks fascinating.
Circus CubeA very colourful sticker variation to the "One plane truncated cube".
Clover ChopA puzzle with hybrid axis system which available turns are reduced to those available on one side.
Clover Chop ExtremeA puzzle with hybrid axis system which available turns are reduced to those available on one side with the edge turns doubled.
Clover FloppyA Floppy Cube which cutting pattern looks like the top or bottom of a Clover Cube.
ContainerThe Container is a shape variant of a Skewb sketched by Jean-Claude Constantin, invented by Tony Fisher and mass produced 20 years later.
Copter TowerA 3x3x3 with curvy cuts, fishered and elongated on one axis.
Cracked 1x2x3A non-bandaged Square-1 with eight segments on top and bottom. In shape of a cuboid.
Crazier FloppyA Floppy Cube with a circle that contains hexagonal prism.
Crazy 1x2x3 IIA crazy 1x2x3 with circles on the 1x3 sides. One circle is moving, the other is fixed.