Find a picture of a subject you like, and recreate it for your entry. You may use any source and any subject for your model within our standard rules. Just bring in a photo copy or printout of the historical subject to display with your model.
For the armor modelers, below is a link to several collections of WW II German Archive photos from which the interesting picture above was taken from the Bundesarchiv I collection. Scroll down to the bottom of the page for a list of these collections.