Darryn, now you are getting closer to my crocheting idea, because I was thinking about how to make it as one piece, like a big sock, whether crocheted or knitted or woven, around the hull's internal structure and bulkheads. I'll bet a good basketweaver (or hatweaver) could make a REALLY light boat using palm-frond leaves (or whatever they use) -- and those are available in huge quantities for FREE.