Fluxus

Fluxus is a network of artists and designers known for using multiple types of media and using new or different ways of making art. Fluxus got its start in the mid to late 1950's from the experimental music of John Cage. George Maciunas was influenced by John Cage's ideas, especially in the idea of chance in art. There was a class taught by Cage called Experimental Composition at the New School of Social Research in New York City. Fluxus was more interested in simplicity a do it yourself way of thinking. A popular type of Fluxus art is called Fluxkits. These kits were a combination of games, printed cards, and ideas that are then organized in a wooden box. This one type of art was created by George Maciunas. Later in the Fluxus movement many members started to explore poetry, performance pieces, and experimental music and film. 

http://en.wikipedia.org/wiki/Fluxus