Whenever a popular new camera (or class of cameras in the case of DSLRs) bursts onto the scene, you can guarantee that a small industry will grow up around it supplying accessories and paraphernalia that wraps around the camera, giving a standardised and flexible system to mount external gear on
You get even more of this when a camera has an unusual, or unconventional shape. You need external rigging just to make an unusually-shaped camera work with conventional peripherals.
Not surprisingly, this includes the Blackmagic Cinema Camera.
Here's a short video showing how the BMCC cam be rigged to work as a fully-fledged studio cinema camera.