For Spiritbinding assistance, there is a lot of GC Jewelry that would certainly help!

Wrists:

Tipping Scales Bracelet / Crimson Standard Bracelet / Lily and Serpent Bracelet - Achievement Item (Complete 500 GC Levequests, whichever item you get depends on your GC)
Patriot's Bracelet - GC Quartermaster

Ears:

Tipping Scales Earring / Crimson Standard Earring / Lily and Serpent Earring - Achievement Item (Complete 500 Supply Missions. Whichever item you get depends on your GC.)

Fingers:

Meteor Survivor Ring - Quest Reward (Camp Bronze Lake: "The Adventure of the Fainting Goldsmith")
Tipping Scales Ring / Crimson Standard Ring / Lily and Serpent Ring - Achievement Item (Complete 200 Provisioning Missions. Whichever item you get depends on your GC)
Aetheryte Ring - Crafted Item (Goldsmith, Level 50, 1-Star Craft, 1x Water Cluster + 1x Rose Gold Ingot)

Head:

Gambler's Crown - Achievement Item (Successfully Affix 5 Materia to the same piece of gear.)