As one will realize - there are an almost endless possible configurations with 4 Cubes.
Here is a collection of some of my favourite combinations that are beyond the Basic Series. There are numerous more but those are for the individual to explore, discover and play with.
The Flower
A beutiful arrangement that resemples the appearance of a flower.
4 Cubes. Can you spot where they are hiding with this shape?
The Crystal
A very clean shape that can be assembled in 2 different ways. 4 Crystals together create one large Rhombic Dodecahedron.
Spikes
A rather challenging Shape to assemble.
12 Spikes protruding out of one solid core.
Difficulty **
The Wrap
3 Stories high, made up of 4 Shapes. How is that possible?
4 into 3 ...
The Answer is by attaching 4 Shapes in a row and rolling it up. Like a Wrap.
The Thomas Box
The Wrap showed us the division of 4:3. The Thomas Box goes one step further and displays the relationship 2:1. 2 Cubes transformed in a way that is only 1 Cube high.
Interesting fact: The space diagonal of a Thomas Box is √5
#42
The most elusive shape to assemble.
It takes patience and practice to learn to put the #42 together. If you like challenges - this one is for you
Difficulty ***
Your Shape
There are Hundreds of possible combinations for a Full Set. Experiment, play and come up with new and interesting arrangement by yourself.