Great idea, something different I personally appreciate your idea. Mostly using K9 for joint supplements When Bruno (my dog) was small in size n weight that time I used backpacks in different colors .One time purchase for their saucer , dog mugs and some more accessories These all products are running good,means long lasting materials ,this factor make relaxed what I paid that time.
My suggestion is why don't you plan something for other small pets .They equally deserve extra attention of human creativeness unlike dogs.
You are very helpful wish my best compliment to your service team
One more thing to mention , previously more then four deliveries were late in fact few one was very late.Need attention.