posted 13 years ago 2 Number of slices to send: Optional 'thank-you' note: Go to the website of the man who has done more for earthbag construction than anyone, Nader Khalili. See his site at http://www.calearth.org/ His initial idea was for survival domes that could be erected in a day or two with simple materials: a shovel, a stack of sandbags, and a roll of barbed wire. Here's how they're built: Using a string and a stick and some lime or something, mark a 10- or 12-ft circle on flat ground.