I currently found a way to duplicate your pet thanks to this thread: http://community.playstarbound.com/threads/cat-and-dog-at-the-same-time.110225/ Although, would it be possible to make a mod without having to edit the NPCs in your saved file through Notepad/Notepad++? A way to have another cat or dog with a different sprite and have the ability to name it? Because I'm sure I'm not the only one who wants multiple pets without having the hassle to mess with the coding.
If I only knew a lot more about coding and making mods, I really would've done it right off the bat. But I don't. I hope someone would give this enough attention to have the will to make a mod that will get it done.