剛晃 Reddit 看到的，叫作 Fallen pennant.
長這樣
https://bnetcmsus-a.akamaihd.net/cms/gallery/X99X98054JTX1460421241854.jpg
不過只確認會掉落，但地點未知
各位大神快上啊！！！
Reddit:
http://www.reddit.com/r/Diablo/comments/4jsvj5/khazra_pennant_fallen_pennant_con
藍貼確認：
http://us.battle.net/d3/en/forum/topic/20743745267?page=3#43