In a large mixing bowl, combine the cream cheese, shredded cheese, bacon, ranch dressing mix, and chives. Stir until well combined. (If using a stand mixer, fold the bacon and chives in by hand at the end).
Transfer the cheese mixture to a piece of plastic wrap. Use the wrap to form the mixture into an oval shape with a slight point on one end. Wrap with the plastic and refrigerate for a minimum of one hour (or as long as overnight).
Decorate the chilled cheeseball with the pecans to create the hedgehog's spines. Add raisins for eyes and a peppercorn for the nose. Serve immediately. (Note 1)
Store tightly covered in the refrigerator for up to one week.
Wait to decorate with the pecans until just before serving. The nuts will turn soft and soggy if refrigerated in the cheeseball.