Actually you don't even need a deer farm nearby. A number of them
sell antlers and stuff over the web.
Depends which country.
Here in Australia, if you import then you have to make sure the
antler will pass quarantine otherwise it will cost you, and you run
the risk of not getting the product. I traded Australian burls for
deer antler from a good friend of mine in the states. There was a lot
of preparation before those items got to me.
I recently found out about a deer farm that’s relatively close by.
They do a lot of felt, and the antlers are a byproduct… just less
Regards Charles A.