Eyeball eggs: Cut boiled eggs in half crosswise and place cut side down on a platter. Mix low-fat mayonnaise with red food coloring and place in a syringe or small plastic bag with one tiny hole in the corner. Pipe the red mayo onto the eggs to make "blood vessels," then top each egg with an olive slice to make the irises.
Low-fat popcorn balls: In a saucepan, combine 3/4 cup light corn syrup, 1/4 cup omega-3 margarine, 2 teaspoons water, 2-1/2 cups powdered sugar and 1 cup fat-free marshmallows. Stir over medium heat until mixture comes to a boil. Add 5 quarts of air-popped corn and stir until coated. Shape into balls using buttered hands. Wrap in plastic wrap and tie with orange and black ribbon.
Caramel apple slices: Slice red and green apples and toss with lemon juice to avoid browning. Serve with sugar-free or fat-free caramel sauce.