What is the fine-grained topic of the following text: They can also decorate their Disney Princess with mix-and-match Snap-ins pieces and outfits (additional Snap-ins pieces and removable outfits are included with other Little Kingdom dolls, sold separately) and can build their own Little Kingdom! Only return the topic.
Decorating and customizing Disney Princess Little Kingdom dolls with mix-and-match Snap-ins pieces and outfits.