The answer is the same for all DoH...
Main: Lv50 class-quest reward tool or Luminary.
Off: HQ Militia
Head/Body/Hands/Legs/Feet: HQ AF
Waist: HQ Raptorskin Merch. Belt
Neck: HQ Electrum
Ears: HQ Red Coral
Wrist: HQ Militia
Rings: HQ Aetheryte
Max meld data can be found here:
http://www.bluegartr.com/threads/117...=1#post5871918
or here, if you prefer to download a spreadsheet:
http://viperbeam.com/ffxiv/doh_materiacaps.xls
...or you can click on my FFXIV character link (until I log on later tonight and it changes what I'm wearing)! Body/neck aren't max-melded though (yet), and I don't suggest doing what I did to my offhand; I did that early on, and now my Craftsmanship is way way over what's needed. Also, I accidentally melded the last two materia on both of my rings in the wrong order (looked at the value numbers instead of the tiers, whoops!).