So these have nothing to do with Germany, but they're too good to pass up. Both items are officially on the christmas list, but of course unavailable in reality.
The first toy comes from the engineering department at the University of Pennsylvania. Quad-rotor machines making "precise, aggressive maneuvers", neither of which is an understatement:
The second is a product that could be commercially available soon (so they claim), and just performs aggressive maneuvers. Kind of like a Segway on steroids. And they even names their company using German spelling (BPG-Werks... like the Bayrische Motoren Werke). Enjoy.