They also come in different flavors such as milk chocolate , dark chocolate , mint chocolate , peanuts , almonds , orange chocolate , coconut , and peanut butter . The candy shells , each of which has the letter `` m '' printed in lower case on one side , surround a variety of fillings , including milk chocolate , dark chocolate , crisped rice , mint chocolate , peanuts , almonds , orange chocolate , coconut , pretzel , wild cherry , and peanut butter .