Cabe CubeA bandaged 3x3x3 with an addition marking to highlight the bandagings.
Candyfloss CubeA 3x3x3 with colored velcro instead of stickers. It allows to bandage the puzzle almost arbitrarily.
Coin Chest PuzzleModified version of Treasure Chest to allow coins be placed into it. One face was replaced and two corners were cut into.
Color Sudoku CubeIron beads glued onto a 3x3x3 to create a Sudoku on every side of the cube.
Colored Plastic Cube with round stickersThis cube is made out of a colored plastic and is decorated with round stickers, similar to numerous other German knock-offs. There are at least four different body colors.
Constrained CubeA 3x3x3 which twisting abilities can be contrained by various pieces. Mass produced versions of four variants exists.
Crazy 2-FaceAn extension of the series of Crazy 3x3x3 Plus Cubes.
Crazy 3x3x3 Plus Cube - EarthA Crazy 3x3x3 where some of the six circles move together with the surrounding layer and some not. One of a series of eight variants named after the solar systems eight planets.