Spider on Web Temporary Tattoo OK, admit it. Nothing, and that means nothing, is as scary as a spider. And if the spider happens to be a black widow, all terror breaks loose. Since this is a universal truth then that also means that the scary black widow is an awesome Halloween symbol and the perfect addition to your trick or treat decor. This temporary tattoo of a black widow busy clinging to its web is sure to raise a ruckus wherever you go. Use it with your most frightening Halloween costume and encourage your friends to include this little trickster in their Halloween celebrations. Where scary rules, this little critter reigns!