unfortunately, even after countless hours of scrubbing and soaking, it seems one side of the skull is still noticeable whiter than the other, and there's still some grime. That's kinda a weird metaphor for life ya know? You can try as hard as you want to be completely perfect, endlessly scrubbing away your flaws, but you'll still always have a few. However that's ok, you're still worth displaying just the way you are... Unless you're good at cleaning bones, unlike me.