Train station cups

One of the interesting aspects of Indian train stations is that they do not allow tea (chai) to be sold in anything except very flimsy unglazed single-use earthenware cups. This is for both trash control and public works program. When finished with your beverage, rather than dropping the cup in the trash (a rare occurance) you smash it on the ground or on the train tracks where it becomes ground into dust and eventually swept away. In addition making all these little cups provides jobs for a number of Indians, which is also a good thing.

As far as I can tell it seems an inspired solution to a number of problems, in a context where labor and mud is cheap, but where paper cups and trash removal is not.