Build Your Own House
This is the easiest system for making your own concrete countertops. There are no forms to build. Instead, you cut a cement board base to fit over the cabinets and screw in some plastic edging, then pour in your concrete. The entire project was done by one lady, with just a little help from another to mix the concrete. If I can do it, anyone can.
Straw walls or clay walls...which is right for you? The answer depends on whether you live somewhere where insulation is beneficial or where high thermal mass is beneficial. Insulating natural building materials include strawbale, light clay straw, and cordwood. Insulation helps keep heat on one side and cold on another side. Thermal mass materials include cob, rammed earth, adobe, stone, etc. Thermal mass absorbs and store heat energy, like a battery.