A large knife of elven make that glows blue when there are Orcs near, made at about the same time as Glamdring and Orcrist and in the same place, Gondolin. Bilbo uses it as a sword and gives it the name 'Sting' because he uses it as his sting vs. the Spiders. It was found in the cave of the trolls along with Beater (Glamdring) and Biter (Orcrist).
The character of Bilbo Baggins from The Hobbit did indeed have a sword named Sting. And yes, you can get it on thinkgeek.com
He defends himself from a giant spider in Mirkwood by killing it. He then looks at his sword and says something along the lines of, "I shall name you sting!" because of the sting of pain it caused the spider.
Sting is not a person. Sting is the name of the sword that came into Bilbo's possession. The runes on the blade say that the sword's name is Maegnas, literally 'sharp point', and could be translated as 'Sting'. Bilbo gave the weapon that name though without knowing the meaning of the runes.
The named swords (Orcrist, Glamdring and Sting) are found by Thorin and Company in a troll cave. Originally, however, they were from the hidden elven kingdom of Gondolin in Beleriand (which by the time of the hobbit was sunken below the waves).
After using the small sword to vanguish the spiders in Mirkwood, Bilbo decides that it deserves a name and calls it Sting.
After Bilbo kills the giant Spiders he names his sword Sting. He did not imagine himself capable of being heroic, and until that moment had felt like a very small Hobbit in a very big, dangerous world. He was much more confident from that point on in the adventure.
A hobbit barrow is referred to as a 'smail.'
Bilbo finds Sting the knife that turns blue when orcs are close and Gandalf finds Glamdring the sword he uses in Fellowship, Two Towers, and Return of the King.
getting the ring to make him invisable, getting the knife called sting that gave bilbo the ability to cut out the dwarves out of the spiders silk, getting passed smaug
1977 - "The Hobbit"
A HOBBIT, of course!
The Individuated Hobbit was created in 1979-09.