Homemade Oreo Cookies. I like that it doesn't use a cake mix. But I would probably use butter or cream cheese rather then shortening.
Also on these boards
Candy turkey. Stick candy corn into the center of one oreo for feathers, and using icing, glue that oreo (with the feathers on top) to another oreo. Stick on a reeses peanut butter cup (with a slice taken off so it sits right), a whopper (for his head), and the white tip of a candy corn (for his nose). Using colored icing add eyes, a gobbler, and feet.
Halloween Jack-O’-Totum Craft and a Huge Halloween Roundup - Cooking Classy
Mummy Oreo Cookie Pops (Oreo cookies dipped in white chocolate w/ m eyes, dry, then drizzle w/ more white chocolate for bandages.