Slight repost from loloflol but it was kinda vague and he didnt provide screenshots to show how it looked like and if its worth doing the quests for it.
Go near the entrance of Stratholme in Eastern Plaguelands and grab the quests from Crusader Kevin Frost , the last one will give you a quest item named Argent Lightwell Charm which places a Lightwell, can be used and spammed everywhere. Saw many people gathering around and asking in Trade if an event was going on, lots of WTF and LOLs.