This shop used to be called the Tinkerbell Toy Shop, which was a misnomer because most of the merchandise was baby clothing. They have kept the merchandise but renamed the shop Baby Mine, a much more appropriate title.
Although there is a lot of baby clothing here, you can also find items like plush dolls, puzzles, and toy items that would be appropriate for toddlers (like me). This shop also has one of the coolest signs of any in Tokyo Disneyland.