Looking for ideas to make a boat out of mostly recycled material. Two idea's that come to mind is cardboard and use weather sealer on it, and caulking the edges or plastic bottles, jugs, and the like tied together and fasten a board over the top.
I have already made a cardboard boat that was able to carry more than a thousand pounds of people, at the time we had seven people on board. I would really like to make another one. Mostly looking for ways to improve or get fresh ideas.
Uses: Fishing, Ease of travel, and\or cargo transportation.
Bonus points for durability and reusability.