Can You Tell Us Anything About the Center of Our Earth?

Could we assume that by vibrating this egg Earth here, you could find out where the different densities inside the middle might be? You could find out what constitutes the center of this egg Earth. Seems plausible. Would you say I'm on to something here? Yep. Who can tell us more? We'll call that a partial success. But obviously, there's only so much you can explain with a chocolate egg.