Here’s a thought about the flag pie and almost any highly decorative pie crust construction. Print the photo same size as the desired pie, black and white is fine..lay the paper over the rolled out dough and cut the pattern with a fine sharp paring knife or a beveled X-Acto blade. Others I’m sure have thought of this, it came to me from constructing architectural scale models. Eliminates the need for finding cookie cutters of varying sizes and allows for making very personalized pies with ease quickly. Dazzle you diners!
But, you’re an architect!
I’d build a house from plans; but a pie I’d like to do sorta ‘freehand’.....:-)