My crest is a design based off my family crest, specifically this one: http://www.heraldry.ws/html/rutherford.html
A dear friend of mine shopped it for me to make it appropriate for submission, and he also removed the outer shield which will probably be represented by the banner itself. As for what the crest stands for, the inner orle/shield represents preservation or protection (something I'm sure my caravan will be striving for a lot in-game...), and when the orle is coupled/shaded the color of crimson it stands for military strength and magnanimity. Once again, all things a Clan should probably have in this post-apocalyptic, viking world. :P
As for the three birds, they are Martlets; mythological birds resembling a swallow, but having short tufts of feathers in the place of legs. As for their usage in my family's crest, to quote a fellow ancestor of mine:
* "The use of the martlet as a charge has two basic meanings in the symbolism of heraldry. The first and most common association is with service in the various crusades in the Middle East and Iberia. The heralds of continental Europe claimed that the beaks and legs were lost in the Holy Land fighting the Muslims. Presumably they were adopted by ancient warriors to signify their surviving a crusade. In England the martlet tends to keep its beak, and the Scottish author of "A System of Heraldry" published in 1722, Alexander Nisbet [a Rutherford descendant and Clan Hume member], stated that in England they also kept their legs, although these were very short. As you can see, all three Rutherford martlets have both beaks and feet.
The martlet has a second signifigance. When the martlet is used as a 'difference' on the shield, it indicates that the bearer is the fourth born son of the owner of the coat of arms. There is, however, no documentation of a Rutherford [or three, one for each martlet] fighting in the crusades or of a 4th son of a Lord Rutherford establishing these arms. Knowing the strictness with which the Scots have historically approached heraldry, the martlets are not placed casually. It's likely that one or both of the possible scenarios is part of Rutherford history."
* Quoted directly from an essay about my family's genealogy and crest, and authored by Gary Rutherford: http://freepages.genealogy.rootsweb....at_of_arms.htm