Those look pretty Cool! And a bit like game objects, with effects that could be duplicated in a UDK game. I could imagine adding physics to their movement to animate the realistic interaction with an environment.
Actually in the free UDK, for something simple like a ball or sphere - it should be as simple as adding a single bone at the origin(center) for a point of reference on the bounds checking (collision detection) of the object, and then enable soft body physics for that object. So the engine would be able to do all the animations when it hits a surface to show compression and rebound animations, and end up bouncing just like a real ball!