On the backstage safari tour we were told that they were real eggshells that had a hole drilled in them to drain out the fluid. Then concrete was poured into the hole and allowed to harden so that the "eggs" could not be crushed on kicked around by the other animals.
When we were staying at the AKL, the concierge was kind enough to get us one of the ostrich eggs they have for the adventurer's camp but at the time they said the octriches weren't laying so they may be low on them as they were trying to hoard them for Easter and not to tell our DSabout it in case they couldn't swing it. Well bless them, they did, it was there waiting for us along with things to decorate it when we arrived....BUT the weirdest thing was it had a "made in China" sticker on the bottom? EH? Do they have lots of ostriches in China? And these can't be real then so what's up with them "not laying"? So anything is possible I geuss. It's a great fake if that's what it is. It still had a hole in it from contents being taken out and it's pretty thick and feels real. but who knows. I'll be ordering some plain real ostrich eggs to carve soon so I'll be able to tell THEN if the one we got from AKL was actaully real. So that deosn't exactly answer the safari question but it's one way that WDW "deals" with ostrich eggs.
On the backstage safari tour we were told that they were real eggshells that had a hole drilled in them to drain out the fluid. Then concrete was poured into the hole and allowed to harden so that the "eggs" could not be crushed on kicked around by the other animals.
Ooops, I didn' t read page 2 before I replied. Sorry. There ya go. I would have bet on this as I was thinking they woudln't want to replace them all the time with animals squashing them.