Borg CubeA 3x3x3 which looks like the villain spaceship from Star Trek.
BrilicubeA modification of the 3x3x3 inspired by the redesign of the pyraminx crystal.
Britney Spears CubeA custom built 3x3x3 Rubik's Cube featuring six different photographs of Britney Spears.
Brother StoryA cube of chinese origin that repeats "Brother Story" several times.
Brueckner 23,7Another strange shape for the 3x3x3 which does not bear a proper name but only an index. This shape is special because it is self-dual.
Bubblegum CubeA fully functional 3x3x3 made from a rubber-like material.