The Greatest Snowman Ever Made

Overview
Summary
 * 1) Speak to Joy, priestess of Dwayna, and learn how to aid the goddess of light and turn the tide of winter. For the children.
 * 2) Make Scrappy happy.
 * 3) Ask around for 2 pieces of coal... There must be some out there somewhere.
 * 4) Ask around for a pipe made out of corncob or some other material... There must be one out there somewhere.
 * 5) Ask around for some a magical hat... There must be one out there somewhere.
 * 6) Return to Scrappy Jhim and help him make the biggest snowman ever.
 * 7) Take back Nebo Village for Dwayna! Destroy the Grentches and Humbugs.  You have 10 groups remaining.
 * 8) See Joy for your reward.

Obtained from
 * Old Nickoles in Lion's Arch

Requirements
 * None

Reward
 * 5,000 XP
 * Gingerbread Shield
 * Armor: 10
 * Gingerbread Focus
 * Energy +5

Dialogue
 * "It is that time of year again. A time of decision and division.  Wintersday, the season during which two of the gods compete to see which of them will dominate the next year, and whether winter will continue to reign over the land.  During the first snow, children build snowmen to show their support for Dwayna, the goddess of light, air, and warmth.  These snowmen, the Brrrls, are symbols of their innocence and belief in all that is warm and bright.  The Brrrls keep the servants of Grenth, the cold and bitter Grentches, at bay during these chilly times."
 * "A priestess of Dwayna named Joy has appeared in Lion's Arch. This winter has been the coldest in years, and Dwayna needs all the support she can get to ensure spring arrives on schedule.  You should speak with Joy and show your support for Dwayna by building a snowman of your own, one far stronger than the average Brrrl.  Go, hero, and save Wintersday.  For the children!  For the children, I say!"

Walkthrough
None of these items will actually show up in your inventory, you just need to talk to the specific NPC to get them:
 * Vanguard Kyle has the 2 pieces of coal are in Ascalon City next to Symon the Scribe.
 * King Jalis has the pipe in Droknar's Forge.
 * Magi Malaquire has the hat in Lionâ€™s Arch.
 * Then kill the Humbugs and Grentches (including Grentchus Magnus) in Nebo Village.

Note: While from the context of the quest dialogue the order of obtaining items does not seem to matter, you have to obtain them in the prescribed order.