Deer antlers... best. chew. toy. EVER.

We got Riley her first deer antler yesterday and let me tell you... she sat there for HOURS gnawing on it. It is officially our favorite because she has barely chewed anything off of it. I think that's the best $15 we ever spent on a chew toy.

This is the brand we bought, in case you wanted to try it yourself:

 Petco link for "Antlerz"