Short of a subterranean mountain fortress, there's nothing that will absolutely guarantee your safety in the event of a natural disaster. Everything else is a game of chance, which is maybe why the creators of the Life Armor designed this floating emergency life pod to look like a giant Magic 8 Ball.
"Will this giant sphere keep me safe?"
"Ask again later."
Usually it's hard to put a price on the safety of you and three other family members, but this time it's easy. The Life Armor runs $5,000 and for that you get a plastic spherical shell that can withstand external pressures up to 9.3 tons. It can even withstand drops from a height of over 82 feet, although that would be a little unpleasant for its passengers. And in case you find yourself stranded for a while or washed out to sea, a built-in solar cell charges a battery-powered GPS tracker so eventually you'll be found. [Pond Co. via OhGizmo! via Damn Geeky]