Based out of Italy and recently debuting their latest development -- a 3D printer that squirts out mud -- at Rome's Maker Faire, WASP (World’s Advanced Saving Project) may be the future of housing in many parts of the world where earth is the most abundant, and affordable, local building material around. The aim is to ease the labour-intensive process that building with earth requires, with an automated, digital fabrication process, using one of humanity's oldest building materials.