I want you to go and have a look at the digital wood joints by Prof. Jochen Gros and Designer Friedrich Sulzer at the Hochschule für Gestaltung Offenbach. This ties in with last week's post about the Digital Carpentry Revolution very well. The team at HFG Offenbach have developed a suite of practical joinery for wood that can be cut on CNC routers.
Did I mention the files are free under a Creative Commons attribution non-commercial license? Woohoo! Get thee to your ShopBot!