J.A.
My son just stopped on his own, but my sister just went through this with her 3 year old. First she put only water in the bottle at bedtime because of his teeth. Then a week later she packed up every bottle in the house and sent them to a new baby down the street. That way when he asked for a bottle she could stay firm in saying I don't have any in the house.
Once he knew she could not give in he was fine in a few days.
She also had the new baby send him a small blanket to thank him for the bottles.
I hope this helps.