1x2x2It is not a boob cube but a boob can solve this one too.
2x2x0A 1x2x2 made even easier.
Apple 1x2x2A kind of extensions puzzle which is simple to solve but difficult to keep in ones collection. May be the first puzzle with an eat-by date.
Borg 1x2x2A building exercise. A 1x2x2 was modifed into a "borg"-variant.
Diamond compass 1x2x2This is a very simple puzzle made for the Rubik’s JUNIOR collection,
but unfortunately it wasn't commercial enough to get licensed under the Rubik’s brand.
Hollow 1x2x2Probably the most minimalistic twisty puzzle although by far not the most trivial to make.