Hey Nog,
how do you guys deal with the nazal cavities? I have done quite a few skulls but in a much more rudimentary fashion and usually just let the "stuff" up the nose dry out until it stops stinkin'. Also wondering why you dont boil the water, I have always just boiled for about 1-1/2 hours then scraped. I also boil with baking soda in the water, supposedly helps with whitening...?... I have never done the complete process with degreasing and whitening so mine are definitely a bit yellowish but still a good alternative to a $700 head mount! Btw, that polar bear is awesome!
JP