I've always adored open hardware and generally the concept of helping each other out. There's this project which gives you blueprints and recipes for living an environmentally responsible, though frugal life. Really makes you want to put down your keyboard and start agriculture work right away! Open Source Ecology project at Wikipedia I'd need to review their current status, but generally, you can do cleanroom designs easily made of common household items. I'm not sure if they have the needed plans and documentation for such simple items under their umbrella, but a well structured collection of wiki links could also do the trick in these cases.