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.
Sif (comics)
Created by Stan Lee and Jack Kirby, Sif first appeared in "Journey Into Mystery" #102 (March 1964). As a supporting character of Thor, she was featured predominantly in the pages of "The Mighty Thor", beginning with issue #136 (January 1967). The character went on to make guest appearances in several series including "The Avengers", "Fantastic Four", "The New Mutants", "Silver Surfer" and "Thunderstrike".