Can you design your own Planets / Moons / Stars / Space Stations (or just any space object you wish) to a given theme? Why not entering the Star Map Contest? Submit your very own idea as an image file. If you have a good design it could happen, that your idea gets added to the official game in a future update!
You could draw an image of the POI digital, paint it on paper or handcraft it with whatever comes to your mind. Creativity is everything!
It just needs to fit the theme above!