Brushes for grooming pet animals; Cages for household pets; Containers for pet food; Covers for cages for household pets; Electronic pet feeders; Food bowls for pets; Food containers for pet animals; Litter boxes for pets; Litter scoops for use with pet animals; Litter trays for birds; Litter trays for pets; Plastic containers for dispensing drink to pets; Plastic containers for dispensing food to pets; Restraining cages for household pets; Wire cages for household pets