structural methods...

examining molecules of fused nylon powder as a way to think about the structure of our organism. In this method, we could some how create air pockets at the elbow joints; inflating = stiffen the structure; deflate = release the structure from static position therefore creating a dynamic structure = organism that responds as proposed (rob + ciara brainstorming session)

ref:

http://hyperexperience.com/?p=1051

Pneumatic fittings:

http://www.automationdirect.com.au/Welcome/Pneuamtica/fittings/tubefit.htm
http://www.air-supply.com.au/catalogue/default.aspx?catid=4&count=72