Gilly Willikers chathead
Harlequin cow (Player-owned farm teaser) only appears during events and may not be currently found in game.

Harlequin cow is a special farm animal that can be found during Double XP Weekends. It originally appeared during the Double XP Weekend before the release of player-owned farms. Spotting the animal awards a small experience lamp. It can be found wandering the isle of Aminishi.