The picture below shows a thin shell sculpted house designed by Steve Kornher, owner of Flying Concrete.
Here two torisphere bubble forms linked together in a bubble form experiment by Lloyd Turner. Note the improved usable shape compared to a hemisphere.
One of the Pioneers of airformed structures was Wallace Neff. Here is his last remaining thin shell dome in Pasadena California.
Google books offers a great way to find more thin shell concrete information.
