WOW Mist of Pandaria (MOP) Mote of Harmony farming guide | tutorial (HD)
16Mists of Pandaria
Mote of Harmony farming guide (On Molten / Warmane private server)
World of Warcraft patch 5.4.2 (17688)
Mote of Harmony (WoWhead):
BoP Motes of Harmony combine to make one BoP Spirit of Harmony.
On 9/18/2012 Ghostcrawler said they will probably make Spirits of Harmony Bind on Account "eventually". Source.
This doesn't appear to be well known, so upvotes appreciated.
For a dual-gatherer, it's a choice between cashing it in for something lower-value but immediately useful, vs. saving them for the probable/eventual day the above comes true (when your crafters may not need them anymore).
[*] Wowhead lists it as 9 Motes on the "Reagent For" tab. This is due to how the combine spell is coded. One mote consumes the other 9 to produce the Spirit of Harmony, and then a followup action consumes the 10th