We have almost every sippy cup that has ever been made trying to find the right one. Finally I found a Diego plastic(First Years Take & Go) one that has a big kid mouth with holes that Lotus has decided to like. We actually made a game of it and she did drink from it with help. She is getting there, however, she is having a hard time letting go of her bottle. Let's hope she gives up the bottle by the time her wedding rolls around, lol. Just kidding, she is doing great and has come very far. I know it is just a matter of time for her to let go of her bottle. I know that we take a few steps forward and sometimes go back a little, but that is ok. Baby steps are fine, because I know she will get there when she is comfortable.
Update, this past week, Lotus has been drinking from an open bottle with help and a few times on her own!