I've heard that, too.
I'll try it out, hopefully she'll like it.
A few people are saying not to give stuffed kongs to her too early, though... when is an appropriate age?
We started Lexx at abot 10 weeks with his - supervised of course. After all Kong do make puppy kongs and puppy kong stuffn. The latter smells like crap but lexx loved it, twas a bit pricey for me though.