Well, when I started with the design, I overlooked some mechanical details that would have rendered this toy useless or not as impressive as it should be.

One problem with driving the hemisphere with the outer body is: The hemisphere is not on a fixed angle, the angle will almost always change. Initially I thought about using a Universal Joint to transfer the rotation from the spinning top to the hemisphere. However, after some research, it was found that they suffer velocity fluctuations that is proportional to the angle from rest. So the more of an angle that is used, the more the hemisphere will slowdown and speedup. 

If this becomes a large enough problem, I've already designed a Constant Velocity joint to take it's place. I am worried about how much friction is being introduced though. so I've got both design ready to test to see how they go.