Sippy cup transition

Amber

Hey everyone! My son will be 1 on the 19th.

He's been holding and drinking sips of water from his Munchkin 360 cup for months with his meals, but I'm trying to start transitioning him from bottles to sippy cups for his formula also.

He's not a big fan of using the 360 cup for formula (although it's been the most successful so far), and I've tried a ton of sippy cups. He just pushes them away or takes a couple sips and then pushes them away and gets mad.

I didn't realize how attached he was to his bottles.

We have tried the Dr. Brown's transition sippy nipples that go on his bottle, and weighed straw cup, the first years straw cup, Avent my easy sippy, and a couple of hard spout cups with and without valves.

Does anyone have a sippy that their LO really loves?

Or any advice on how to make this transition easier?