Voxelization tool

Hello,

Recently I have been playing with the voxelization definition from the source:

http://www.co-de-it.com/wordpress/code/grasshopper-code

I have changed the definition a bit, in order to get brep wiferames as a result. My questions are:

Is there a way to put randomly some cubes that would be 2x bigger than the rest ?

Is there a way to leave some of the cubes full, i.e. wireframe, but not empty ?

Kind regards,

Aleksander Lapinski