SHAMBLES SOFTWARE
The floppy cube is a 1 by 1 by 3 "cube". It's actually a cuboid but never mind.

puzzles/floppy


It's very easy! There's only a few permutations so you can even solve it by random chance. That doesn't make it bad; it's relaxing to twist it back and forth.

I would recommend it based on its good construction and value price point.