Interesting piece of beer history: In 1963, Alfred (Freddy) Heineken of the Heineken beer company, took a trip to a small island in the Caribbean and was taken aback by all the beer bottles littering the beaches. The island was mostly impoverished with little in the way of building materials or good ways of throwing things away so he came with the idea of making his green beer bottles in the shape of a brick with interlocking bottoms. He believed small, one room, "shacks" could be made of all these spent bottles.
In the end it was not a workable idea, but one which has captivated many architects since then who drew up prototypes. Green building before it was cool. This link has lots of cool photos of Heineken bottles used in buildings things.