Seeing Spark
This is a 3D printed multi rotor designed for being a small integrated gimbal quad. It uses SparkyBGC and Sparky2 for the control system.
Writeup here: http://buildandcrash.blogspot.com/2014/11/seeing-spark-sparky2-and-sparkybgc-quad.html
SparkyBGC writeup here: http://buildandcrash.blogspot.com/2014/08/sparky-brushless-gimbal-controller.html
You can see a video of it here: https://vimeo.com/110723868