Teddy Grahams, Bear shaped graham cracker snacks, come in chocolate flavor, but the regular honey grahams work best for a contrast of flavor and will make your trail mix more 'S'more' tasting. There are all kinds of wonderful natural graham cereals, too.
S'mores Trail Mix
15 ounces Golden Grahams cereal (Teddy Graham cereal or a natural Graham Cereal)
16 ounces miniature marshmallows
12 ounces chocolate chips
Empty all ingredients into a LARGE bowl or bag and mix.