Chew Toys

I have a cattle dog that belongs to a common subspecies of domestic dog—canis manducatione—the chewing dog. He does have a small underbite, which makes me think part of his problem is improper occlusion. I will be fixing that problem in the near future, but for the moment (and for the last 10 months) I have been dealing with a super chewer. That brings up the topic of chew toys.