dont know if this helps but this is what i did my first DD wouldnt give it up she would have it at night only and when she was nearly 3 we introduced the bottle fairy who was going to come and take her bottle and my daughter loved money so the bottle fairy left her money and we took her to the shop to buy her a toy to cuddle at night when she went to sleep (she picked a plush spiderman). the bottle was our secret no one knew she still had a bottle and she was so proud to not have it anymore felt like a big girl.

With my DD2 i knew the struggle with DD1 so i told her when she turned 2 the bottle fairy was going to come and take her bottle and leave her money and started to warn her for 2 weeks before her birthday the bottle fairy was coming soon and it was quite easy. My DD2 was also the only one out of my 3 that had a dummy and that was taken along with the bottle i felt mean but she seemed fine with that

My DS was easier he had a blanky so when bottle fairy took bottle he had his blanky