There is a new group on Facebook called "Portraying Native People at War of 1812 Events" The group is for those who portray and research Native people and British Indian Department or US Indian Agency personnel during the War of 1812. You don't necessarily have to do those impressions to participate, several people have commented that the group is useful because their unit did field with Native warriors during the war.
The group is growing and we are building a nice collection of period art and images of artifacts relevant to a Native, Indian Department or Indian Agent portrayals. The intent is to simply share good information and provide a visual resource for War of 1812 re-enactors.
Please have a look and consider joining the group. The link is