Dolls and playsets inspired by Barbie and Chelsea The Lost Birthday take young imaginations on adventures packed with exploration and animal friends! Barbie and Chelsea on Lost Birthday inspired playsets to create travel adventures packed with exploration and animal friends! This Chelsea playset inspires so many stories with the theme of the birthday party, animal friends and a super fun surprise! Kids can put the wand in Chelsea's hand, clip it to the playset and spin it to open the surprise gift. Once opened, the gift will reveal a rainbow of attachable accessories that kids can use to decorate the tree and 3-tier cake! The jungle-inspired set is packed with sweet details, such as the connect-and-play spaces where the sloth puppy and chelsea's monkey friends can play and rest.