Images from "Beyond: Visions of our solar system."
Currently on exhibition at the National Air and Space Museum.
From top to bottom:
Neptune and it's moon Triton, Uranus, Mars

The only thing I actually remember from 2nd grade (besides Marcus, the boy who would pull my ponytail while I wasn't looking and then pretend it wasn't him) was a special report we did on the planets. My planet was Neptune, named after the Roman god of the sea, with little moon Triton always by it's side.