Dress-up dreams come true with the LEGO Friends Costume Party with Unicorn & Fairy (42661), a magical building toy where party-loving kids ages 6 and up create enchanting celebrations! This dazzling set transforms Periwinkle the horse into a majestic unicorn with sparkly horn while friends show off their spectacular costumes – Autumn buzzes around as a striped bumblebee, Olly splashes as a colorful merman, Leo performs magic tricks as a fluffy white bunny, and Paisley twirls in her shimmering fairy wings! The party is in full swing as music pumps from the cool DJ booth, friends strike fabulous poses in the super-fun photo booth with silly props, and everyone enjoys icy treats from the bubble-filled slushie machine. Young builders create their own celebration stories as they arrange balloons, serve sparkly cakes, and help friends show off their magical abilities – from fairy wand spells to merman trident powers! This enchanting unicorn toy helps kids develop social skills as they imagine different party scenarios and character interactions. Makes a delightful birthday gift for kids who love unicorn toys, and creative pretend play. The LEGO Builder app makes building even more fun with easy-to-follow 3D instructions. Contains 261 pieces.