Ok, these are really for the kiddies. These are spillproof cups that DON'T HAVE A VALVE TO INSERT! I have two kids under five and that means a lot of sippy cups. These are super because you don't have to fish those little clear thingys out of the bottom of the dishwasher. You just screw on the top and you're done.
I have two girls, so the Disney Princess ones are popular. We also have Nemo. I've seen them in Thomas the Train, Cars, Elmo and a few other faves. Get 'em. You deserve a break today!

I also have the Disney Princess ones, and they LEAK!!! I have not had good luck with them at all!!