Joker CubeA 3x3x3 encapsulated with a 2x2x2 which pieces have cutouts showing the four suits of a french playing card deck.
Joseph ToysAnother cube of unknown origin. The choice of colours (body and stickers) is highly unusual.
Jumbo Magic CubeThis is huge (penny to show relative size). It is larger than a 4x4x4 or 5x5x5.
Key 3x3x3A mass produced 3x3x3 reduced to a compact size and with a customly attached keyring.
Knitted CubeA very innovative "sticker" variation of the 3x3x3.
Lasker CubeCustom 3x3x3 sticker pattern designed by Mark Longridge.
Latch CubeA 3x3x3 with innovatively restricted movements.
Le CubeThis decent quality cube was made in Taiwan. With stickers in black and purple.
LimitationA 3x3x3 which implements another concept of contraining the movements.
The effect is similar to the constrained cube but the restrictions are variable.