Feldon 
From EverQuest2.com:
Jesters, thieves, bards and fans of mischief are invited to enjoy the adventuring and new crafting festivities that surround Bristlebane Day! You never know what riddles, laughs and pranks are to be found during this enjoyable time of year.
Celebrators are present in every home city, and the oddest of objects have been spotted in Antonica, The Commonlands, Darklight Wood, Timorous Deep, Greater Faydark and Frostfang Sea! Be sure to keep your eyes peeled for special events, especially in Enchanted Lands, occurring only on the Highest of Silly Days, April 1st, 2011!
New Features for 2011:
- “Gnary a Joke to Tell” is a new quest offered by Galan Jokepeddler in Enchanted Lands.
- New Halas is celebrating Bristlebane Day!
- Bristlebane Day merchants in city tradeskill houses have some new items for players to buy, including new tradeskill recipes!
Don’t forget to visit these great sites for more information about both old and new events, as well as overviews of the quests and screenshots of the special items available just through this in-game holiday:
The event begins on Tuesday, March 29th and runs through Monday, April 11th.