Squishmallow Happy Meals will be coming to McDonald's in the US starting December 26th. A dozen different Squishmallow characters that are approximately 3 inches in size will be included in the Happy Meals, such as Cam, FiFi, and McDonald's character Grimace transformed into a Squishmallow. There will also be one mystery character. Each toy will have a special music playlist from Universal Music Group that can be listened to by scanning a QR code on the Happy Meal box.