monopsony: (economics) a market in which goods or services are offered by several sellers but there is only one buyer
market: the world of commercial activity where goods and services are bought and sold
rain stick: a percussion instrument that is made from a dried cactus branch that is hollowed out and filled with small pebbles and capped at both ends; makes the sound of falling rain when tilted; origin was in Chile where tribesmen used it in ceremonies to bring rain