Lost Horse Due Unfortunate Hopper

So I was doin the ??? Quest and you know where the white meteor is and you have to drop the collected items to open the door, I accidentally dropped my horse into that hopper. It was a black horse with the redbeard's hair upgrade and I really messed it up. Is there a way to undo this and get back my fully upgraded hairy horsey?

 

I'm afraid there is not; Wynncraft has a "no refunds" policy in regard to all ingame items. To prevent this in the future I would recommend using /itemlock to prevent yourself from being able to drop certain items.