This is exciting:
The Zoetrope is a vertical-axis wind turbine made from common materials such as stove pipe, metal brackets, plastic sheet and a trailer hub. Many of the materials can be found at local hardware or home improvement stores, the rest can either be made at home or purchased online. The Zoetrope was commissioned by Washington (USA) resident and renewable energy supporter Mike Marohn to provide supplemental water heating.
Applied Sciences made the decision to open source the wind turbine and provide a freely available introduction to wind power, thereby allowing others to improve the design and functionality. The construction guide represents a realization of the open source decision. It details the build process and includes a complete materials list as well as recommended tools.
For more images and complete design information head over to Applied-Sciences.net