Whenever I teach students about Rube Goldberg Machines, I use a video clip from Wallace & Gromit. Usually I use the first video that I fell in love with, "The Wrong Trousers".
Wallace is an inventor and his faithful dog Gromit is a genius who ends up saving him from his own inventions and his own clumsiness.
This used to be available on Netflix, but they recently took it down. I now have to resort to purchasing the DVD.
You can even go directly to Jansen's website to preview his kinetic sculptures. Thankfully, the video is presented via Vimeo and not youtube.