@Hawkeye Thanks for the explanation. That makes sense, I have wooden flooring in the house. It's the equivalent of a speaker cone vibrating I assume.
What I find interesting is that the volume perceived at the point of contact with my eardrum, is not proportional to the amount of vibration caused. It's almost as if the sound decays faster than the resonance vibration.
@ecurelix & others: It's a silly craft really, looks shiny though.