Fair, but that’s an issue with the concept, not the execution. If they’re going to go through all this effort to cast gold into machine parts, why would they use spraypaint?

Also I have no reference but I feel like if you plated this in tungsten you could get past customs. If they ask why its so heavy you could just say it needs to be heavy for a specific usecase so it’s made of tungsten, though I admit I have no idea what tungsten plated gold would look like on an xray, or if tungsten electroplating is even possible.