Up House from recycled cardboard boxes, even my cat wants it for itself! Just create the structure with cardboard, add some glue and toilet paper, add the colors, add all the details and voilà. a fantastic Up house!
For some time I've toyed with the idea of building my own cnc router, or perhaps a printer. The idea, of having a tool which allows me to fabricate parts using a computer to control the process, is pretty compelling.