What is it

Probably bone that's worn.

This is a hypoplastron from a turtle. Possessing any part of a sea turtle is a huge no no.

This is a hypoplastron from a turtle. Possessing any part of a sea turtle is a huge no no.

Wow! Nice job on the identification. That's exactly what it is.

Wow! Nice job on the identification. That's exactly what it is.

I agree.

This is a hypoplastron from a turtle. Possessing any part of a sea turtle is a huge no no.

I would just tell 'em I'm holding it for a friend.

I thought it was a piece of antler from a surfing deer.

I thought it was a piece of antler from a surfing deer.

Deer don't surf when they have antlers silly!!

I thought the antlers were antennae to help with guidance through the tubes.

I recommend not going whitetail deer hunting.
Once you take a Buck, you will spend thousands of dollars and hundreds of hours in pursuit of those antlers.
It's a sweet addiction.