Puppy loves to chew on her toys, and yeah that's a given for most puppies. She loves to de-stuff, eviscerate, and then consume the soft toys, but also really enjoys the hard rubber toys that bounce. We had given her a tennis ball to play with, but after playing with it for a bit, she just sat there with the tennis ball in her mouth and chewed and chewed and chewed on it. My sisters large black labs often did the same thing with tennis balls and apparently have developed some long term dental problems because of their habit.
It turns out that long term chewing on tennis balls (as opposed to just having them in their mouth for fetch) can wear down the enamel on dogs teeth, so a racquetball is a better option. Since puppy loves, loves to chew and also enjoys a bouncing bounding toy, we decided to see if she'd like a racquetball instead. Did she ever.