How do you wean a baby off bottle?

Well i had my bottle till i was 7 it would drink chi chi (warm oatmeal that was blended) but one day my chi chi bottle disappeared and i got a sippy cup that looked close to a baby bottle and every week it would look more and more like a sippy cup and less and less like a baby bottle i would say to gradually start with something that looked closely like a bottle and change it every week to look mor like a sippy cup or regular cup good luck...