Stone Soup

Two men come to a village with nothing more than an empty pot. They fill it with water and a large stone, and place it over a fire in the village square. Asked what they're doing, they reply that they are making stone soup and request a bit of garnish to improve the flavor. Additional villagers come by, each adding more ingredients. Finally, a delicious and nourishing pot of soup is enjoyed by all.

Isn't Wikipedia the ultimate stone soup?

External links: A version of the tale (http://www.kousi.gr.jp/kousi/syoukai/hp-siryou/stone-soup)