El Ratón (I would be fine with calling it "Mouse Ship" or "El Raton" in the English version, but you guys have control over the naming so)
I call this "El Ratón" which means "The Mouse" because it looks like a mouse to me.
One day in a solar system far away from our own, a spaceship crash landed on a planet that hosted all of its life on a single Pangaea-like continent. In the crash landing, everything was incinerated save for one fateful item: a mouse used for one of the computers on the ship. It just so happened that at this time that the first civilization on the planet was forming, and when members of the civilization found the device, they took it as a commandment from the gods to live by its design. The mouse came to be an essential guide to the way of life of the society; everything from the very first huts to their eating utensils took some form of inspiration from the mouse. After around a short 3,000 years of development spurred by the mouse, it was natural that the mouse design became an integral guide for the design of their first spaceships, and from this came "El Ratón." Far beyond the idea that the mouse was a sign from the gods, the species tirelessly looks for the species that the mouse came from, in hopes of fostering a close inter-species friendship and a strong alliance.
El Ratón Dropbox File
Note: I don't know much about the SC:O year-wise, but I am going to assume that 3,000 years before the start of SC:O, humans didn't have mice. It's not really hard to imagine another species developing mice though, and what I was thinking is that when the species meets the captain, the captain could falsely claim that the mouse was their design (because, well, they have them even if they didn't 3,000 years ago), which would allow the player to ally with the species.