For many of us, the very first kinetic sculpture we encountered was probably a George Rhodes rolling ball machine in an airport or science museum. I know mine was and I remember how I spent a long time fascinated as I followed the various pathways for the descending balls. This kickstarter project is one that makes me smile in the same way.
It is by Andy and Keith Johnston and one of them is an owner of a Dimensions! Check out their video. Dimensions is there! Here is a link to there kickstarter page and video. They have reached their funding goal but if you want an early set, you can pledge. All these parts come with the set.
Have fun!