Human Skull

Full credit goes to no1453 for making the original skull [here](https://www.thingiverse.com/thing:3339150)

I found no1453's skull very nice, but it had a few inconsistencies that would've made it unsuitable for the clinic where I wanted to display it. I simply used Meshmixer to fix a few things:
* Made the skull symmetrical since the right side was a bit nicer.
* This resulted in a better eye socket on the left side
* As well as a better hole in the jaw.
* Hollowed out the bottom of the jaw to make it a bit more realistic.
* Added a hole at the back of the skull to allow for mounting. Should fit a 1/2" dowel relatively easily at 100% scale.

I used a raft cause the supports were having a hard time sticking, but I'm sure it can be done without one.