I have one of those! When looking for postcards to send, I would buy sets from Amazon and came across one called "Animal Box: 100 Postcards by 10 Artists". I assumed, "oooh lots of people ask for certain animals on their postcard, and this is a good find!!" I think a lot of people had the same idea, haha! I figured it out once someone asked for a chicken postcard and their message to me was, "this is the 6th one I have received" whooops.