I was just wondering if anyone has found other spiritbond increasing gear other than these:

Patriot's Choker (GC choker): Increased Spiritbond Gain +1
Patriot's Bracelet (GC bracelet): Increased Spiritbond Gain +1
Meteor Survivor Ring (Quest item, obtained from Camp Bronze Lake?) : Increased Spiritbond Gain +3

I've been trying to get materia for my Relic weapon by myself instead of paying an extreme price for it in the markets. Are these the only ones available at the moment or are there more? Thanks in advance.