Stealth CubeA 5x5x5 in camouflage. It pretends to be a 4x4x4.
Super 4x4x4A sticker variant of the 4x4x4. Compared with the traditional stickering scheme the face pieces are distinguishable.
Super Duper CubeA super 4x4x4 made with small extensions instead of just stickers.
Tangram 4x4x4A 4x4x4 stickered with only two colors or only one if you do not count the bodies colors.
TetraVex 4x4x4A 4x4x4 designed after the basic rule of the namegiving puzzle "TetraVex".
Window CubeA bandaged 4x4x4 similar but not identical to the Burr Cube.