Halloween comes once a year, and it's the perfect time to show off your pup's festive looks and adorable costumes. That is, if your dog is comfortable wearing them.Here are 20 funny and adorable costume ideas for dogs.You're a wizard, Harry Pupper.Show your love for "Harry Potter" by having your dog sport a wizard costume. There are pre-assembled costumes available, but this one is also fairly simple to DIY. Plus, your dog can carry around their favorite stick as a wand.Have your dog be a lion for the night.This fairly simple costume only requires one piece to complete the outfit, a lion's mane. This look typically works best on blonde or light-colored pups.Have your pup dress up as a spooky skeleton.If you have a dog with a dark coat, using non-toxic, pet-safe white paint is an easy way to get your dog ready for Halloween. Because there are no clothing items or accessories, this is a good option for dogs who are likely to eat or shred a costume.But, there are also fabric versions of this costume available.See the rest of the story at Business Insider Click here to read full news..