Animal-activated pet feeders that include dispensers for releasing pet toy feeder balls with pet food and pet treats therein; Automatic litter boxes for pets; Automatic pet feeders; Automatic pet feeding bowls; Automatic pet waterers; Combs for pets; Electric pet brushes; Feeding vessels for pets; Hand-operated devices for scratching pets; Household storage containers for pet food; Pet brushes; Pet feeding and drinking bowls; Pet feeding bowls, automatic; Pet feeding dishes; Pet grooming devi...