The bottle fairy took my son’s bottles and the drying rack and left a toy in its place. We made a big deal and had a countdown and everything for a few days leading up to it. He was seriously addicted to his bottle and was around 18 months when I finally took them away. He was only having one at nap and bedtime by then and at those times he would run and look in the dishwasher to make sure there really weren’t any bottles left. After 3 or 4 days he never asked again.