These couple of days I have been thinking about the usage of the rice-shaped beads we bought a long time ago when I just began to make beaded molecules. I realized at that time that they are not good materials for endurable beaded molecules since the structure is not stable usually. But it turns out that this kind of beads are quite suitable for constructing the duals of fullerenes. Take a look at the following two dual models, one for C60 and the other for T120, created by Chuang.
These dual beaded molecules have pretty good mechanical strength due to, in my speculation, the tensegrity of such structures.