Let your little one enter a world of sparkle and imagination with the LEGO Friends: Costume Party with Unicorn & Fairy (42661) building toy. This 261-piece set lets them build the ultimate dress-up celebration. Turn Periwinkle the horse into a glittery unicorn and help the friends shine in their whimsical costumes. With a DJ booth, photo station, and slushie machine, the party never stops.