Concept/Novelty/Design Projects
Cool and interesting, but you really have to take design school projects with a grain of salt.
A lot of these projects "riff" on and explore an idea - in this case, eco-friendliness through the use of cardboard.
That's what design and art schools are like (I know, I went!). There's an exploration of some driving concept behind the work, and those concepts don't necessarily translate into a final, market-ready, real-world product. It's more like a process of trying something, working it out, and learning from the exercise.
Sometimes the project have enough merit that some aspect of the design or concept is carried on to other designs, or the designer is hired by a company because of his or her demonstrated ability, but it's rare that a student project is practically considered enough in all aspects manufacturing and marketing to make it to market unaltered.
Still, very refreshing to see something so unique!