I think what @Ravynscroft uses is perfect, and I'm sure you have it. It's pine shavings! (I hope she doesn't mind me boasting about how she packs egg for shipping.) Her shipment came double boxed with pine shavings used inside both boxes, including on top of the eggs and below the eggs, and on top and below the inside box. That's how it done! Pine shavings are just like old-fashioned excelsior but even better because they can be recycled and used with the chickens! I'd love to post a photo, but I'll only do that with @Ravynscroft 's permission.
Yep, she and I pack very similar! I love her pack jobs.
