Sting (Middle-earth)
Sting has the magical ability to detect orcs or goblins nearby, glowing blue in their presence, as it did when the Fellowship encountered orcs in the mines of Moria. Tolkien establishes this as a common property of First Age Elf blades, particularly those forged in Gondolin. Sting is also exceptionally sharp. Bilbo manages to thrust it without effort deep into a wooden beam at Rivendell. Frodo also wounds a troll in Moria, after Boromir notches his own sword with his attempt. Sam uses Sting to cut through the giant spider Shelob's strong webs with ease, and also wound the spider, driving it away from the paralyzed Frodo.
John Constantine
In these early appearances, Constantine was depicted as a sorcerer of questionable morality, whose appearance was based on that of the musician Sting (specifically, as Sting appeared in the films "Brimstone and Treacle" and "Quadrophenia"). Alan Moore created the character after artists Steve Bissette and John Totleben, who were fans of The Police, expressed a desire to draw a character who looked like Sting. They had already drawn at least one character in Sting's likeness, a briefly glimpsed background figure wearing a black-and-red-striped T-shirt in "Swamp Thing" #25 (1984), who was later retroactively declared to be John Constantine. In his earliest Swamp Thing appearances, the character is drawn with a marked resemblance to Sting, and in "Swamp Thing" #51, Constantine appears on a boat with the name "The Honourable Gordon Sumner" on the bow.