Insert a slice of celery into an orange.
Banana Ghosts (anotherlunch.com)
My bananas were overripe, but still cute with their mini chocolate chip eyes.
Since cookie cutters aren't sharp, I placed them on top of my bologna and cheese sandwiches, then used a sharp knife to do the cutting. I took one for the team and ate the left-over sandwich scraps.
Jack o' Lantern Quesadillas (inspirationforcelebration)
Stack multiple tortillas and cut out the face with a sharp knife. Lay out the same number of tortillas, add grated cheese, then topped them with the jack o' lantern faces. Bake in a 450° oven for about 2 minutes, but watch closely so the top doesn't burn. They are done when the cheese is melted.