My buddy Max is no longer a puppy, but he still loves to chew on toys. Unfortunately, as he is a lab/spaniel mix about a year old, his jaws are strong and his teeth are perfect. Consequently, he can destroy many chew toys within an hour.
When we first got him a little over a month ago, we got him some flimsy toys.

What a hoot! He polished them all off in minutes. Then we got him very hard plastic chew toys, the kind with some rubber coating with little teeth. Well, the plastic being brittle, this too didn't last very long.
Sorry, I don't remember all the brand names. But next we got him a very hard rubber, nearly as hard as the plastic. This was a bone with a hole through it for treats. Same thing, chewed into it within a couple days.
As we got smarter, we tried to get chew toys that were basically very hard rubber but with a little give to them. He had a bone made of this material, and two solid red balls slightly smaller than tennis balls. He also has one ball made out of pretty hard rubber, about the size of a softball but hollow inside so he can squish it as he chews.
Amazingly, he still has the hollow ball, the rubber bone, and one of the red balls. As I'm working this morning (and, of course, surfing this forum!

) I see he has destroyed the other red ball.
Well, clearly I don't like paying $4 to sometimes $10 or more for a toy that gets destroyed in hours, or even days. Plus, I'm concerned that Max will eat the bits of rubber and other material he breaks up and I don't know, but it seems to me that might be pretty bad for him.
So can anybody suggest some things that: a) will last; b) are good for him; and c) something that would be fun for him?
Thanks.