Dracula's Dentures - made from chocolate chip cookies, red frosting, and marshmallows. I'd use homemade chocolate chip cookies (or Enjoy Life cookies), Dandie mini marshmallows, and India Tree natural dyes to make red or pink frosting.
Stick pretzel sticks in the sides of double-stuffed Oreos. Then, use frosting to stick M on top of the Oreos for eyes. This is a great recipe for kids to help with—no hot or dangerous materials, and lots of margin for error.
The Original DIY Pumpkin Patch Pudding Cups for Fall and Halloween