The latest thing on the market to build a boat is to buy a couple cases of that spray flex stuff and a bunch of old screen doors welded together or stuck together with gorilla tape. You only have two colors though. Hmm lets see, black with a white racing stripe ,or white with black stripe?? I guess for power you could use a tube with vinegar and baking powder in it . Fantastic no moving parts, nothing to wear out. We have it made people. Isn,technology grand ??
