Big paper boat
A large paper boat, folded to test the feasibility for origami of thick double-layer corrugated board.
As could be expected, this paper proved rather awful for origami. Even a single layer was hard to fold neatly and with more than one, I needed to stomp my heel with lots of force in order to even get a roughly smooth folded edge. While I was opening the model, the cardboard also tore in a few places. Still it was a fun experiment and the resulting 1.5 m long boat an unusual model.