PD forum member Raxs created some amazing Ghost shells! Click the image to enlarge it.
I spent a few hours the other day Modelling a Destiny Ghost from scratch in blender, which you will recognize below. I then modified the model and created new texture maps to create my own custom ghost shells. These are some of my interpretations, I have made one for each level of rarity and have included descriptions and how I personally perceive they would be obtained.
You can see actual Destiny Ghost Shells in our database.