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Innovative Products
It looks like a potato. It could provide a good emergency shelter in time of disaster. But it must be pretty heavy--not really for typical camping out.
Such devices are portable. We had a friend we worked with who built a concrete boat as an ocean-going vessel for an around-the-world tour. I guess it is easy to build and very seaworthy. The largest was the 345ft long, 48ft wide, 26ft 7in high Gu Tian.

Building with concrete is easy - but the chemistry must be engineered correctly with the right support structure.
This is an interesting video, which shows that mimicking nature can have some nice side effects.

See How Termites Inspired a Building That Can Cool Itself | National Geographic

Hillary Clinton Is Like Herpes, "She Wont Go Away" - Anna Paulina

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