There’s more to these things than meets the eye. Much more. Even the little Shun Mook Mpingo discs are a bit complicated inasmuch as there is a small crystal placed inside the wood and the disc itself is a resonator AND directional. So for the record weight it's not just mass loading or something so mundane.
So for each disc you have to figure out which direction is TOP and which one BOTTOM AND which direction sounds the best when the disc is rotated. Been there done that. The other Shun Mook devices such as the Spatial thing, the one with 3 Mpingo discs on it, and the record weight have to be constructed so that the directionality of each disc is taken into account. I’m confident the Shun Mook record weight is not that easy to knock off unless you are aware of these issues with directionality, otherwise the way the whole thing will be lopsided and probably ineffective.