I know this is often a popular typic on these boards when our little ones reach the age of transitioning to a sippy cup. With DD#1 we tried many different types of sippy cups before we found one that she liked. However, with DD#2 she took to the first cup we used so I wanted to post it on here. It's an AVENT spout cup. I've never seen these before but I was interested b/c the package stated that it was the best cup for transitioning from a bottle to a sippy and boy were they right!!! Attached is a link for the 9oz sippy cup but they also sell them in a 6oz cup, which is what we started with. I HIGHLY recommend these!