depending on age you may want to start with a soft spout sippy cup, that's what my lactation consultant told me when my daughter was about 7 months old
it's not a 1 day process mama, I've been trying to get my daughter weaned for a couple months now..... just start trying to offer a bottle once a day, if baby takes it then after a few days offer it for 2 and so on and so on.....