Don't Force Your Pets To Wear A Costume*
Most pets don't enjoy wearing a costume and become uncomfortable, unpredictable, and strange to other pets and animals when dressed up. Instead, if you'd like to help them get into the fun, consider a Holiday-themed bandana for them. For some pets, when they've been desensitized and positively reinforced, they may be comfortable and even like being dressed up. In these cases, make sure the costume doesn't interfere with their ability to move, breathe, see, hear or bark.
*Berlin does not like being dressed up, as seen in the Turkey Costume picture on this page, which was taken at my husband’s office. Unfortunately, his boss insisted on regularly dressing the office dogs up to feature on his Instagram page. It bothers me greatly she was forced to do this for the internet’s amusement. Don’t be that person.