Patch of Bat Hair

Source
This item drops from:
 * Lesser Scourgebat in Ghostlands
 * Vampiric Mistbat in Ghostlands
 * Mistbat in Ghostlands
 * Vampiric Duskbat in Tirisfal Glades
 * Ressan the Needler in Tirisfal Glades
 * Greater Duskbat in Tirisfal Glades