Which bone do you sacrifice for the Bone Key Benefit?

I was listening to book 6 again in the gym this morning and daydreaming about what bones could be lost if using the bone key - and whether you could actually still function depending on what you lose.

I found this random bone generator https://www.generatormix.com/random-bones

You can only take the first bone you get. I was lucky enough to just lose the Vomer bone in my nose which I think will just give me a droopy nose.

What did you lose?