Iced in buttercream. Slide is RKT covered in buttercream and then blue glitter gel. Igloo is RKT covered in MMF. A light dusting of cake sparkles over entire cake and iglool. Characters are MMF/GP mixture. Entirely edible. Did this for a raffle fundraiser at my childrens' school. Out of 900 students, guess who wins it? My daughter. She was thrilled!!! LOL!