So I'm seeing on the General forum of WoW US that there's a hunter who has discovered that the Toy Windmill item from the Un'goro Crater finale questline seems to be bugged in that it spawns many lances instead of one. Here's some pictures the hunter took:
https://i.imgur.com/hcXg7Vg.jpg
https://i.imgur.com/gYQZwkO.jpg
https://i.imgur.com/oCyLmrH.jpg
And here's a link to the item itself: Toy Windmill - Item - World of Warcraft
I take no credit for discovering this, just wanted to share it.