Stackable play cup with lid and straw

My son loves his play kitchen and loves it when I 3d print him things, so I wanted to make some kitchen related items for him to play with. The initial version of this model was just a cup (and much smaller), but for v2 I increased the size a little and added a lid and straw. The bottom of the cup is meant to fit perfectly inside other cups for storage, and the lid should snap fit perfectly.