PREPARE cake batter as directed on package. Blend in dry pudding mix. Spoon evenly into 24 paper-lined medium muffin cups. Bake as directed on package for cupcakes. Cool completely.
DISSOLVE drink mix in hot water. Stir into frosting until well blended. Use to frost cupcakes, reserving some of the frosting for attaching the candies.
CUT each licorice piece into 16 (2-inch) lengths; set aside. Place 1 cookie on top of each cupcake. Insert 4 licorice pieces into frosting on each side of cookie for each spider's legs. (Eight licorice pieces for each cookie.) Use reserved frosting to attach candies to tops of cookies for the spiders' eyes.