Mentone is a town in Harrison and Franklin townships, Kosciusko County, in the U.S. state of Indiana. Mentone is the self-proclaimed "Egg Basket of the Midwest" because of prolific commercial egg production in the area, and holds an Egg Festival annually in early June to celebrate its heritage. A large concrete egg stands near the town center and is considered locally to be the "Largest Egg in the World". The Lawrence D. Bell Aircraft Museum, is located within the town limits.