It's exactly what I said and suggested before. They're rewards from the add-ons.
A Crystalline Prophecy:
Ebon Key can yield
spinel ring or
angel's ring with Pet: Acc and R.Acc.
Ivory Key - go look. About four reward earrings can get Pet Defense, Accuracy, R.Accuracy, M.Acc or MAB.
A Moogle Kupo D'Etat:
Angel Skin Key - gives Lv72 back pieces with Pet: MAB, or Attack/R.Attack.
Red Coral Key - Lv68 Neck's with Pet: Critical Hit Rate, Evasion, or Acc/R.Acc.
Not forgetting the actual Lv75 Rewards from these Expansions:
Desultor Tassets (ninja edit: item tag kept failing),
anwig salade and
mirke wardecors that can be augmented with Pet related boosts.
Trawled the relevant pages for links for the lazy ._. Go look through the ASA Keys yourself :P.
Other than the previous gear you can find by Power Searching (that I linked), and the new gear released in today's Version Update - this might be all there is~