A Rube Goldberg machine is an elaborate machine that is constructed with many simple machines working in a chain reaction to perform a simple task. If you have ever played the game Mouse Trap you have seen an example of a Rube Goldberg machine. To properly construct a Rube Goldberg Machine from scratch takes a great deal of creativity and this activity will be highly emphasizing not "out of the box" thinking, but instead, "there is no box" thinking.
Find out more about Rube Goldberg. The famous inventor and cartoonist.