With each of my children, the selection of available sippie cups has changed. I was excited when my daughter turned nine months because I could finally pick out a CUTE GIRLY sippie cup! I went to Wal Mart and picked out the cutest one -- a princess sippie. I liked the new "no insert" design that consisted of a little hole in the middle of some rubber-like substance. We got home and she could NOT get any liquid out of it! Neither could my husband and two older boys! Not sure who has the JAWS for that sippie, but surely not a baby!! I was so disgusted by the waste of money sippie that I threw it away and don't even have a picture of it.
Option two was the sippie on the right below . The NUBY. I liked the new sleek design that looked cute and could easily fit into baby's little hands. within a few days, the insert fell into the liquid every time she used it. I had to pick it out with my fingers, dirtying the milk.
Option three was the sippie in the middle below. Still a cute sippie and it was even insulated! The insert did stay in, and she could get the liquid out easily. However, it leaked! Not a ton, but enough that I had to constantly wipe up the little spills. Annoying.
Option four was my last pick because it is UGLY. It is the one on the left below. But it works! Happiness! Easy to drink out of, insert stayed put, and no leaks, ever. Ugly is best. Now I have four of them and they are all I use.