Harv found a piece of it once. The Leased Territories, where they lived, 
had their own beach, and Harv and his friends liked to go prospecting there, 
early in the morning, for things that had drifted across from Shanghai, or that 
the Vickys in New Atlantis Clave had flushed down their water-closets. What 
they were really looking for was pieces of stretchy, slippery Nanobar. 
Sometimes the Nanobar was in the shape of condoms, sometimes it came in larger 
chunks that were used to wrap things up and preserve them from the depredations 
of mites. In any case, it could be gathered up and sold to certain persons who 
knew how to clean it and weld one piece of Nanobar to another and make it into 
protective suits and other shapes.