Most dogs have a strong personality and this is why they won’t accept everything right away. If your pet is not used to wearing clothes, chances are you will struggle to convince it to wear a costume, even if it’s just for a couple of minutes while you snap some quick photos.
The more complicated the costume it, the higher the chances for your dog to be annoyed by it and refuse to wear it. Therefore, try to stick to products made of one-two pieces maximum that are easy to put on and don’t weigh too much. Make sure all the pieces fit perfectly and that they won’t put pressure on the dog’s head, ears, belly, paws or tail.
As with all other animals, dogs cannot be forced to wear new accessories, so you need to be patient. Have your pet wear its costume for 5-10 minutes daily, one-two weeks before the event so it will gradually get used to it and accept it.