Can anyone recommend a cup for kids that has a lid and that is spill proof/leak proof? My daughter is too big for sippy cups but she likes to take water around the house when she plays so I don't want her to have an open cup since its too easy to be knocked over while playing. I find that the plastic cups with the straws, alot of them leak and all the fun ones from the Disney store can't go in the dishwasher. Anyone know of a good brand? Thanks!