Second Pregnancy

Whitney
I'm 25w2d along with my second girl. My daughter is just over 11 months and we've been cosleeping since day one. She no longer nurses during the day and hasn't for some time, but continues to at night. I'm trying to break that habit but she doesn't have any other soothing methods that she will stick to. She's never taken a pacifier and refuses a nipple bottle so she drinks her water from a sippy straw cup.  She has a blanket she likes but I don't think it's a security type blanket for her. 
Any suggestions on things I can try to cut the night time nursing. We're also working on crib training.