These 3D models are VRML images which need a 3D browser. If you don't have a 3D viewer you can download Cortona's 3D viewer here.
Making 3D images was relatively easy thanks to Bob Burkhardt. He also has a beautiful webpage with VRML images. If you want to see his 3D tensegrities go to Burkhardt VRML images.
All the tensegrities you see below are real tensegrities. This means that all the struts and strings are in the right position. So far nothing is virtual, but in some cases I took the advantage of the virtual world by leaving out the strings or struts in the picture. In other cases you see no difference between a strut or a string or I made the struts extremely thick, but in all cases I also show the real tensegrity.