I know this may seem really random, and I'm not 100% about it myself but killing black dragons in the evil chickens layer, and as a drop I picked up a toy mouse. I would definitely see if anyone can confirm this, but there were no random events that occurred, and the guy that was there with me had just arrived so I kinda ruled out him dropping it. REALLY random though.

 

Hey there hitman76,

 

Thanks for your submission! However, the toy mouse that appeared in your inventory appears to have been picked up by the Ava's device you're wearing, and as such is not actually a drop from the Black Dragons. Thanks for reporting what you thought was a strange drop, though! :)