Clover Cube 3x3x3A face turning cube (aka 3x3x3) with spherical cuts that go so deep that the face pieces vanish.
Clover Cube ExtremeA Shell Cube the inventor enhanced with another axis system, making in a triple hybrid.
Clover Cube Plus LtdA special limited edition of the Clover Cube. It can be lit and came with a special bag and other stuff.
Clover Dino CubeA Dino Cube with plastic plates attached to make it look like Clover Cube.
Coin CubeA very simple hybrid puzzle but interestingly not the simplest.
Coin SkewbA cube with hybrid axis systems combining a Skewb with an extremely low cut face turning cube.
ComboCopterA hybrid puzzle which combines a 2x2x2 with a Curvy Copter.
Compass CubeA strangely bandaged 3x3x3. It unintentionally is the first physical implementation of something very close to the imaginary pieces.
Compino SkewbA hybrid of a Curvy Compino and a Skewb, a corner turning cube with 4 logical layers.
Complex SkewbA Master Skewb hidden inside a Skewb with many holes.
Compound HelicopterWith many aspects this is a helicopter cube or a curvy Copter. The axis system is the same as the number of cuts but the cutting depths are different.