Welcome to the Isle of Smile – home of The Mubbles, where the beautiful island runs on SUN, WIND and FLOWER POWER. Like the Wibbles of Wobble mountain, the Earworms and the one-eyed Drib Drabs, everyone on the Isle of Smile lives in perfect harmony – most of the time. Until the Clouds of Joy BUMP together making a wonky rainbow that means one thing . . .