Married couple, Ronald Rael and Virginia San Fratello of Oakland Calif., whose profession is architecture, have created a world around them making the utmost use of 3-D printing. The two have developed a unique technique for manufacturing almost any component for the home out of discarded waste. By using mud, dirt, nutshells, coffee grounds, grape skins, sawdust and other discarded waste they have managed to produce everything from tile to roof shingles to a small free-standing adobe structure. Unlike traditional methods of spraying layer upon layer of plastic, the two have developed a method in which a type of mud from all these waste products can be layered. At present they are busy with scientists rebuilding some of the dying coral reefs with their unique method. The couple feel that traditional methods of producing objects from plastic will only add to the ever-growing problem of waste. Hopefully their work will be an inspiration to others.