ClockwiseTwelve moving pieces on a circle with two possible holes.
CodebreakerA moving hole puzzle where you can can twist the 4 corner tiles all at once.
Color Cube PuzzleEight cube in a case with nine possible slots. The cubes have to be rolled around to scramble and solve the puzzle.
Color PuzzlerThis large, hex-shaped, 6x6 Whip-It type puzzle is about 120 mm tall.
Combo CubeA combination of Peters Black Hole and the Rubiks Cube.
Crash Dummies CanA puzzle can obviously produced as advertisement for a car safety campaign.
CrossteaserRotate color wheels into the open space to move
Crystal Puzzle SixA custom modification of "Crystal Million Puzzle" with six layers instead of four.