I have managed to make some cardboard cubes and they ended up looking quite interesting. I created the vector images of the sides after playing with different shapes using paper. Paper is my favorite prototyping tool btw :) I laser cut cardboard pieces and glue gun them together in 2 interesting shape.
In this video Dollee is playing with them and trying to inter log them in different ways. This will help me to understand which way to go and to see possible different ways of inter log.