My Argentine Dogo LOVES his piggies.
Honestly, they're a bit expensive, but my dog loves them and it takes him more than 15 minutes to destroy it. Dogos are similar to pit bulls in regards to their strong jaws and desire to chew. They do last for a while and it makes him happy so it's worth the price. I'm still looking for a less expensive source however, but it's hard to beat great customer service.