At a regular day my minds has lots of ideas, but which one is the best? Which one is plausible? By making proofs of concepts ideas can change into inventions. There is noting that says more as a real physical object, proving its use and letting the idea speak for itself.
First year Industrial design project, make a seating object from a piece of cardboard. I made a festival chair which is easy to carry, easy to customize, handy for a nice rest and fun to take home.