In large bowl, combine pudding mixes and milk. Beat with wire whisk for 2 minutes. Fold in dessert topping. Tint pudding mixture blue. Stir in chopped cookies.
Spoon mixture into large, heavy plastic bag. Snip a 1/2-inch piece off corner of bag. Holding top of bag tightly, squeeze mixture into mounds in 3- to 5-ounce plastic cups.
Make face on each mound with blue and green candy-coated pieces. Outline eyes with black decorating gel to make goggles. Add an additional sandwich cookie to each for hats and, if desired, a gummy octopus to the side of each. Chill up to 4 hours. Makes 8 servings.