After reading the historical background informational text about the Middle Ages, lecture notes about the legend of King Arthur, Federigo's Falcon, Sir Gawain and the Green Knight, and Le Morte d'Arthur, students engage in research abut any family surname. After identifying the colors, number of reoccurring items, elements, and heraldic items (with a little help from me) on their family crest, they then research the meanings of each of the aforementioned items. They then, using Google images, locate clip art representations of the items on their family crest, print them out, color, and mat them.
They do the same for their first name, which will include only pictorial representations (like their family crest) of who they are as themselves. On the back is a legend explaining both sides - what the pictures, colors, number of things, and to what their family motto (usually in Latin on the family crest) translates.
They love doing this because sometimes they are shocked to find things on their family crest that makes sense to their family today, and it allows them to express who they are as an individual as well.
By the way, for the shield - I just drew one and put it on an old overhead projector to then project it to a poster board. This became my template from which I then made a number of templates.
I even attached a picture of one of my former students shields.