I offer to produce nappies for dogs.
It is really necessary for little puppies or dogs during heat. It will be very comfort when you transport your pet. Or maybe you are on a visit, but your dog stay at home for a long time. If you had nappies for dogs, you wouldn't hurry to come back home to walk with your dog. I offer that all the dog species will have their own model. Every model will have special nice-looking color and it will be non-expendable. I think it will be necessary thing for dog lovers.
You can start to advertise them in a special section for animals and sell nappies for dogs at special animal shops.
You can also use these nappies for other pets.