With an adult's help, melt the frosting in the microwave. For an orange spider, use vanilla frosting and add a few drops of red and yellow food coloring once it's melted. For a dark spider, use chocolate frosting.
Spoon the melted frosting over the spider until it's completely covered. While the frosting is still warm, pour the sprinkles over the spider. Press in two small candies for eyes.
Recipe by Michele Reyzer.