I think it would be amazing to earn the blueprints to customize a pond from the size we want, shape, and the kinds of flowers, rocks or any other decorations we want around the pond and as substrate. It would be fun to also decorate inside the pond as if it was an aquarium with many options of plants and ornaments. Then we can use coins, vouchers or diamonds to buy from a variety of Koi or perhaps different fish up to a certain limit that fits with the chosen pond size. Those fish would be like the other pets that need to be fed on a daily basis for experience points and occasional tools, or even diamonds as it is in the fishing area. This would be nice to have in my backyard.