A tip I've heard to get them off milk in a bottle is to slowly dilute the milk each week - the milk I use is 1 scoop of powdered milk = 1oz water so I'd mix 7 scoops with 8oz then 6 scoops of milk with 8oz and so on, before you know it it's water! Does that make sense!!!! What about the sippy cups with straws, more similar to a bottle than a cup? My LO is only 5months so I'm not there yet to say if these work but they are tips I've previously read. Hope you get some ideas.