The ingenious, dishwasher-safe Goodbyn ($29.95) by Byndoo features five individual food compartments, kid-tested “animal ears” for easy opening, a built-in handle, a reusable eight-ounce water bottle and a treasure chest perfect for hiding special love notes from you, Mom. When your kid’s not using the Goodbyn as a lunchbox, fill it with water, freeze and voila—an ice pack for minor bumps and bruises.