Pet parents can treat their cuddly kitties and pampered pooches to festive Halloween costumes, toys and ghoulish goodies from PetSmart . Participating PetSmart stores even have some wickedly fun family activities planned. Check out the Halloween highlights awaiting you and your furry friends. Gracie loves her PetSmart Halloween treats./ESW Monster mayhem hits PetSmart Monsters are making a big appearance at PetSmart this year, with an entire collection dedicated to these colorful adorable monsters. The Thrills and Chills ™ Monster Mayhem collection features toys, beds, costumes and accessories. Pets can play with a monster flattie toy, sport a monster pet costume that features an adjustable hat and slip-on furry “legs,” or curl up in a three-eyed ghoul monster bed. Amplify their look with Pet Expressions Ideal for pets that would prefer not to don a costume on Halloween Night, PetSmart Pet Expressions provides temporary, non-toxic, pet-safe chalking, stenciling a