You can build a peripheral for your Switch using a cheap and cleaner alternative to plastic.
I can see the arts and crafts appeal. This will probably be big with children.
However, cardboard is rather weak. If you get your Labo wet, it's history. Children also aren't that careful. Keep out of reach of pets.
I don't like this. It feels like one of their "gimmicks" like the Wii controller's plastic peripherals. What are your thoughts?