Kite StarA 3x3x3 with distorted but regular pieces.
Knitted CubeA very innovative "sticker" variation of the 3x3x3.
Knob CubeA 3x3x3 with one set of 4 cubies added to each side.
KolasA 3x3x3 bandaged and extended with cubies glued on.
Kraft CorporationSides contain these words: Jet Puffed Marshmallows, Ice Cream Toppings, Marshmallow Cream, Carmels and Kraft.
KreNol CubeAlso known as "real Tic-Tac-Toe Cube". Depicting six games of the famous childrens game.
Kubche RubcheA version of the 3x3x3 from the 1980s produced in bulgaria