We already have the ‘container’ houses, now there is the ‘water tube’ house.
http://www.jameslawcybertecture.com/?section=projects&id=1087
I think I like this better than shipping containers. Round is cheaper to heat and cool, but still ALL thermal mass. It’d be nice if they could insulate the dead space. Lots of critters would live there. Prob a fail.
Plus I’d need an adjacent one for my shoes. Definite fail.