Fenris,
Great question and apologies about the delay, this is what I have on hand! It was all found in binder the kingdom has been archiving.
I know that a similar call had been made for company/house heraldry for last years banner wars website that Sir D'Okynn and Jasmine had been prepping.
I also know of these images here:
http://www.amtgard-eh.com/mwg/ (small thumbnails though)
http://www.midnightsun.org/images.html (better quality B+W jpgs)
And I have redrawn the MS, FK, and MWG park heraldry and will put them up soon.
Hope this helps.
Lady Dreanya, interested in a Heraldry Guild? Fenris, ya in?
Check with Sir Galen as well, Sir Martello mentioned him to have been the last keeper of such archives.
Best wishes,
S