Parrot Sumo Backhoe Loader

This thing was made by Thomas, 11, during the "hack your drone" week workshop organized with Parrot and MagicMakers in Paris last week (cf http://www.thingiverse.com/thing:1402232)
Thomas decided to transform the Parrot Jumping Sumo into a Backhoe loader!
To build it he used:
-Tickle App (to code with Scratch and pilot the drone and the Arduino)
-an Arduino Bean
-A standard servo motor (connected to the Arduino entrances)
-A 9V battery
-a little string