So you have a big dog - a very big dog. Most likely, your extra large canine has a pretty big personality as well. Why not dress your best pal to suit that personality in a perfect Halloween costume? Don't let your giant pup sit on the sidelines, get them involved! There are many extra large costumes you can buy and create that will make your dog bark for joy! Bring them on a walk around the neighborhood, let them accompany you to a Halloween party, or have your extra large dog help answer the door for trick or treaters!