Personally, I don't care for packing peanuts, I feel that it's too hard to pack it all tight enough, and there's too much movement in the box. I individually wrap each egg in bubble wrap, put everything in a bubblewrap "nest" and tightly pack crinkled up newspaper around the whole thing so nothing can move in the box. 
As far as the PO goes, I always write on the box exactly what's in it, every side as well as the top says FRAGILE and then I alternate sides with HATCHING EGGS and LIVE EGGS.

As far as the PO goes, I always write on the box exactly what's in it, every side as well as the top says FRAGILE and then I alternate sides with HATCHING EGGS and LIVE EGGS.

She's in a better place and not suffering anymore. Sad day.