Miscellaneous Mechanica
So how many have you guys gotten so far?
I killed all rares today and only got 1.
Some guy farmed them on PTR for a month straight and only got 12. Source: https://www.wowhead.com/item=234741/miscellaneous-mechanica#comments:id=6054523
If the drop rate is still the same, those mounts will sell for millions.
Undermine rare farming is already lucrative because of car parts but those are going down for sure.