Making a few, even animated gifs, should be doable albeit non-trivial. I may need to pickup some Photoshop skillz. Either way I need to start looking for a few capstone symbols - these would be things that are 'key' points that nail down the design at important confluence points to generate visual diversity between 'sections'. Actually technically since it is a circle they are actual sectors but I digress.
So...any thoughts? Stylized letters are always good (Nanoha uses lowercase Greek characters: Pi, Rho, Sig, Nu) from any language as well as unique but simple seals or symbols.