. Don't forget to pack a few treats for your night out with Stitch — he's known to get a bit snacky! Don't say we didn't warn you! Just beware — this costume can cause erratic behavior and unbearable cuteness in animals who wear it. But whether you're simply a huge Lilo & Stitch fan or your dog is also prone to creating replicas of San Francisco only to destroy them, you simply can't go wrong with this Stitch Dog Costume this Halloween!With a simple seal of its hook and loop closure, this adorable piece turns your little pup into everyone's favorite alien "dog.