This has become my favorite part of our week between Christmas and NewYear's :)
All 4 of us do it quite easily this way: begin by building a structure with old cartons & boxes. Then stick graham crackers onto cartons with frosting (below). (Mine in foreground is an elbox pasta box laid down with a mini cereal box on top of it.)
These are an exciting addition too: gingerbread people cookies...
both our kids were hard at work and did a great job pretty much all on their own! foreground is our 5 y.o.'s, and our 7 y.o. is still working on the front of hers...
silly hubby's...
above: 7yo, below: mine
above: 5yo, below: hubby's