The
Patch 6.3 Notes (Preliminary) say the following:

Originally Posted by
Patch 6.3 Notes (Preliminary)
The items required to enhance equipment purchased with Allagan tomestones of causality, Moonshine Twine and Moonshine Brine, can be purchased from the following vendors:
The referenced item
Moonshine Brine is the upgrade token for weapons. Historically, the odd patches have made the upgrade tokens for armor and
accessories available through the new alliance raid coins and hunt currency. The upgrade token for accessories is
Moonshine Shine and so the patch notes were probably meant to read:

Originally Posted by
Patch 6.3 Notes (Preliminary)
The items required to enhance equipment purchased with Allagan tomestones of causality, Moonshine Twine and Moonshine Shine, can be purchased from the following vendors:
(Incidentally, this is a great example of why the names of these tokens was a bad choice.)