It is sold by NPCs. In the Other Trade Goods category. An item from Classic World of Warcraft. Always up to date with the latest patch (10.2.5).
EveryMarket
Pink Party Hat - Item - World of Warcraft
Fine Thread - Item - World of Warcraft
Jillian Tanner - Wowpedia - Your wiki guide to the World of Warcraft
Elynna - Wowpedia - Your wiki guide to the World of Warcraft
Media]Completionism: I finally unlocked every single dye available in the game! : r/elderscrollsonline
A Unique Color For Weekly Quests (Like We Have For Daily Quests) Would Be A Great QoL Improvement : r/wow
Pink and Blue PBT dye-sublimated keycaps Cherry profile for Cherry MX switches for61 63 64 68 84 87 96 108 mechanical keyboards - AliExpress
Pink Dye - Wowpedia - Your wiki guide to the World of Warcraft
Baku - Wowpedia - Your wiki guide to the World of Warcraft
Overwatch D.Va Pink Backpack – Blizzard Gear Store EU
Temtem Devs In Hot Water Over Passive Aggressive Response To Dye Cost Complaints
World of Warcraft TCG, Bronze Drakonid - War of the Elements -16/220