SHAMBLES SOFTWARE
This thing is a 3 by 3 which has been changed inhumanely.

puzzles/rhombicdodecahedron


I can't recommend this because it's extremely frustrating to solve. The colours are duplicated so it's easy to get pieces mixed up which leads to funny polarity errors. The colour distribution is whacky so it's very easy to get lost half way through an algorithm. Other than that, it's no harder than a picture cube.

Imagine trying to find your way through a maze, which by itself is usually fun, except this time there's a hyperactive five year old you're giving a piggyback to and he keeps covering your eyes and spinning you around. That's probably not totally unlike what solving this puzzle is like. Only get this if you hate yourself to at least the sixth degree.