This is quite the project. I've always been a fan of Goldberg machines and they keep getting better and better. This one however is probably the most unique I have ever seen. It's using the power of light to make it run. I think you're really going to enjoy this! The first video below is the actual machine video, and the second video is the making of it!
Science
Incredible Water & Sound Experiment
This is a fascinating example of how sound waves can manipulate a waters physical flowing structure!