As the others said, a call to the vet for at least any advice might be a good idea. Perhaps something like giving her some bread or canola oil will help coat it and let it pass through easier. At least it's blunt and not sharp, so hopefully it'll pass all the way through without any problem. Your dog sounds large enough that there probably won't be any problems, but I'd watch closely the next couple days for sure to make sure she passes stool and that there is no blood in it.

My golden, Tommy, once ate and passed an entire dish rag. We didn't even know he got ahold of it or that he ate it. We just found the thing in his waste and that's how we realized what happened. Hope this helps and gives you some reassurance.