Process the chocolate chips, peppermint candies and pecans in a blender or food processor until finely ground. Place the mixture in an airtight plastic bag until ready to use. There will be enough mixture to make several cheese balls. When ready to make a cheese ball, place the cream cheese in a bowl. Remove 1/2 cup of the ground candy-nut mixture from the bag and mix with cream cheese. Shape into a ball and wrap in plastic wrap. Refrigerate for at least 2-3 hours or until firm. Yields: 20 to 30 servings.