Witches Fingers - Green Meringue piped onto a baking sheet with almond flakes as finger nails.
Brain Cupcakes - Piped Pink Icing as Brains.
Mummy Frankfurts - instead of making puffy dogs cut strands of pastry (or bread dough) and wrap the frankfurts up like mummies. Being sure to lave space for the face. Bake in a hot oven similarly to puffy dogs.
Mummy style pizzas - coat mini bases with tomato pizza sauce, using cheese strips or cheese stringers make the pizza look like a mummy using two olive slices for eyes.
Bakerella Ghost Pops (Google) I made these for DD's spooky disco birthday party.