This item is acquired in-game. See its sources below.
A Rare Miscellaneous, item level 1, binds when picked up.
First seen in build 3.80.2.69874 (Wrath of the Lich King).
Read from the World of Warcraft client build files.
Frosty's Collar uses icon file 237441, which 1 other item also uses. The 1 closest by item ID:
[DND] Lil' Deathwing Placeholder ID 67417 · Miscellaneous "Teaches you how to summon this companion."Blizzard numbers items as they are created, so the named items next to ID 39286 (39281 to 39294) were usually added in the same batch as Frosty's Collar: the same quest line, zone, vendor or reward set.
Infection Repulser ID 39281 · Weapon - One-Handed Mace · item level 35
Bone-Linked Amulet ID 39282 · Armor · item level 35
Putrescent Bands ID 39283 · Armor - Leather · item level 35
Miasma Mantle ID 39284 · Armor - Cloth · item level 35
Handgrips of Turmoil ID 39285 · Armor - Cloth · item level 35
Torment of the Banished ID 39291 · Weapon - One-Handed Sword · item level 35
Repelling Charge ID 39292 · Armor · item level 35
Blackened Legplates of Feugen ID 39293 · Armor - Plate · item level 35
Arc-Scorched Helmet ID 39294 · Armor - Mail · item level 35The raw ItemSparse values for item 39286 in the current client build.
Read from the World of Warcraft client build files: Item, ItemSparse, Lock, Holidays, AreaTable and CollectableSourceVendor.
The tooltips of the spells linked here read as follows. Frosty: "Right Click to summon and dismiss Frosty the frost wyrm whelp."
TheWoWDB