Base and alternative turncap for Marble Machine 3

I created an alternative turning cap for the wonderful [Marble Machine 3](http://www.thingiverse.com/thing:1385312) by [Tulio Laanen](http://www.thingiverse.com/Tulio/about). This has a simple handle that slots into the unit. I also created a base for the machine as it looks good if you print in 2 colours.

Video of the machine in operation: https://youtu.be/xWYujd0CDYk