Costumes can be scary for dogs, too. Be careful that your dog won’t be scared or try to attack the stranger in the costume. Some dogs may not recognize some one with a mask or large hat and it can confuse your pet or trigger territorial instincts even if they are normally very familiar with that person. My dog Jake, did not like the Monster that swallowed my son and tried his very best to pull the costume off my son. We had to take our son with the costume in a bag to his friends house to change and go trick or treating. We also tried to put a costume on Jake, and he did not tolerate that well either. Some dogs love it and some dogs loathe it.
Newer harness costumes are available for the bigger dogs this year. The larger dogs are more comfortable with the harness costumes and tolerate them well. You have a choice from the headless horseman, the bronco rider and a few more. Check out all the dog costumes at FavoriteDogCostumes.com

If you want to dress up your dog for Halloween, make sure your dog is comfortable at all times. Do not use any costumes that use rubber bands or can constrict circulation or breathing. Be watchful for any toxic paints or dyes. You may want to dress him up a few days earlier to get him used to the idea rather than wait for Halloween when all the excitement is at its highest. Do not leave your pet unattended with the costume on. He may try to chew it off and can choke on it or have it cause an obstruction in his intestinal tract. If your dog is uncomfortable in any way, get a quick picture, then let him “Trick or Treat” in his “birthday suit”.