The Great Pendragon
Heraldry is a fun thing for everyone creating a PC knight, and can be enjoyed by even the least artistic of us (I should know!)
Note that in game heraldry is a skill, and a key way for knights to identify themselves to each other.
Starting Knights of Salisbury should ideally include references to the Salisbury coat of arms when generating a device for their family. The Salisbury coat of arms is: 5 horizontal bars of blue (azure) inter-spaced by-four bands of gold (Or).
In the language of heraldry it is: “Or, five bars (Azure)”
so here are a few useful links to get you started