Every year, my daughter's school holds a Rube Goldberg competition. The entire school is tasked with creating a Rube Goldberg machine that can accomplish a certain goal within a set amount of steps. The students then break into teams, bring boxes of odds and ends from home and spend an entire day trying to create their machines. Some teams show up as early as 5 am to get started.
Unlike the recent internet sensation "Goldie Blox" ad, this video is not a slickly produced commercial assembled by adults, but an example of creative girls (and boys!) actually doing the hard work. Through trial and error, and a ton of duct tape, the teams use their own creativity to get it done.