Not really sure if this is the right forum for this, but I thought this was the greatest and most interesting fun software I've seen in a long while.
Also don't know if this has been posted before since I'm new & too lazy to read every message. ;)
Called MLCAD
It's a 3D design software using Lego bricks & pieces!
Instead of the usual LINE, CIRCLE, SQUARE, SPHERE, etc drawing tools, you select from pre-created Lego bricks.
Colors are changeable.
Figures are included also.
Availble in multiple languages.
I've not had enough time to really get in-depth with it, but the little I've played with it was fun!!
URL: http://www.lm-software.com/mlcad/