I am posting here in an effort to gauge interest. I've got about ten lengths of carbon fiber tubing, each about 7 to 9 feet long, with an outer diameter of 1.5 to 3 inches. I am thinking about selling the stuff. I figured they could be used as wing spars or fuselages for larger builds. These tubes are unidirectional roll wrapped carbon fiber tubes. They have a very high bending stiffness and hoop strength relative to their weight. They also taper from one end to the other. A tube of this length/size would usually retail for a couple hundred dollars, but I would consider selling them for about $50 plus shipping if people are interested (I got a load of them for free). I can post details and pictures if anyone is interested.