The skin

The material choice is obviously important because of how it interacts with its occupants. I'm going for wood, which can be connected to the circular structure in panels (curved ones). They could also be pre-laser cut in modules like the work shown below.

The first are examples by David Dessens (l) and Daneil Widrig (r). Checkitout at http://www.generatorx.no/20080229/generatorx-20-update-2/



This one is by Tim Shork, you can find more about it at http://www.generatorx.no/20080128/generatorx-20-public-presentations-2/