Pick up Stolen Winter Veil Treats and go to the Strange Snowman at level 35 and level 72 in Altercate Mountains. From there you will need to kill the Abominable Grinch and return back to town. He spawns nearby and is often camped when the event starts. Wait a bit before you do it and this quest becomes much easier to complete. You will get a recipe from the pack and a disguise kit from Great father winter through the instance and make more 2moons dil.
This option is available for Classic, The Burning Crusade, and Wrath of the Lich King. You will have to be eligible for that expansion in the dungeons inside of that expansion in order to select that option (i.e. at level 80 you will not be able to random classic or TBC instances). You will be given a daily item reward (Satchel of Helpful Goods for Classic TBC and 2 Emblems of Triumphs) for the first random dungeon you do each day. Hit Find Group to find a group for a random dungeon. The Satchel of Helpful Goods contains one free superior quality item.