The Doll Costume is Rarity 29 and it can only be obtained from the Account Upgrades. It replaced the
Pilgrim Costume in November 2017 as it and the holiday it was based on were starting to lack in popularity. The Pilgrim Addow, Arinya, Crindol, Echlin, Fasoro, Gonk, Kujo, Snookle and Zoink have been updated. If you have one of these pets, they have now turned into Doll pets. If your pet is wearing this costume, they will dress like a Southern belle. Doll pets have poofy gowns with a feather hat and an umbrella or fan. They also have rings on their arms and legs to look more "realistic".