What straws do you like for the take and toss straw cups? I have quite a few of the cups but have long since lost or thrown out the straws that came with them. I just bought a new 4 pack of the cups, but wouldn't mind having back up straws since I have a bunch more cups still.

I'd like shorter than an adult reusable straw, preferably bendy if that exists, easy to clean, cheap enough that if it gets really gross I can toss it. I use the take and toss straw cups for milk at home since even at 3 and 5 they still knock things over, plus I keep the milk in the fridge in between meals so I like to have it covered. And extra bonus if they come in purple.