In the period of M&B, your family heraldry would have been simplified (take away the supporters, the crown on the top... the big feathers, and strip it to the basics...) a heatershield, with a background, a charge, and some other stuff... that's pretty simple... if you put in a whole bunch of charges, let you stick them on, a whole bunch of customizable backgrounds, and allow you to pick the colour scheme of "metal-colour-metal", there's plenty of variation for everyone.