No doubts about it! Werewolves have fangs! Werewolves are covered in fur! Does he ever howl or make weird growling noises? Dog Howlin' Werewolf Costume Just slip it on and your doggo will be a real werewolf! Alright, you might be right. The costume even has a faux fur headpiece that fits on your dog's head with an elastic band.A Real Wild OneHave you ever suspected that your pup is a werewolf? And a lot of dogs howl? Your dog could totally be a werewolf.