Source: http://toyland.gizmodo.com/some-genius-m...

Like with R2-D2, BB-8, the adorable rolling droid companion that will be appearing in Star Wars: The Force Awakens this December, was realized as an actual remote control prop on-set, not computer graphics. And just days after the robot was officially revealed on stage at Star Wars Celebration, some brilliant hacker has created a perfect RC replica of their own—although a little smaller in scale.

It’s been rumored that Sphero, the company known for its smartphone-controlled RC ball of the same name, actually helped Disney bring BB-8 to life for the movie. So it’s only appropriate that Christian Poulsen hacked apart a Sphero toy to build his BB-8 replica. And the results are really impressive.

If you’re interested in building your own BB-8—and who isn’t?—Christian has posted a break down on how he hacked and assembled his over on Make, including the use of a CNC milling machine to carve the lightweight head out of foam.