Summary

The power of 3d printing over traditional molding is that you can create a unique object everytime.
You can't have this via a production process made by molding material, in 3d printing you have it for free.
This opens a long and broad way of 3d generated objects made using loops, random generated numbers, recursion and parametric 3d modeling.

It's a single openscad script, it creates a openscad box that generates a unique box with lid every time you run the scad.

You can easily modify it to increase face numbers and make the squared spheres more spherical.
Also you can scale it, has two hinges so the lid doesn't go away.

Find here an updated version of the OpenSCAD source: https://gist.github.com/makevoid/6677455
the one in thingiverse may be a bit outdated

The new source includes a shell script to generate infinite unique boxes, I recommend you to try it :)

Selected as participant at Maker Faire Rome, 3d printing contest!