Hatching Tide hats?

[Suzaku]

At least it's not bells. And it doesn't take a huge amount of time to get all the hats.

[Arya]

Finished getting all the hats a little earlier (quests completed in all 3 cities). Either the spriggans have a long repop time, or they rotate between caves in an area, not sure which. It would be nice to think that SE and the Devs will change what items are available next year to make these ones unique to this year (something I think they should continue to do with each event), but sadly I expect a rehash of the same thing next year (just like they used to do in FFXI), which means I probably won't have anything to do.

[Naylia]

You can always wear your hat!

[WarPath]

Just got a Deaspected Crystal. Is this part of the final phase of our event?

[Benji]

Nobody knows what they are for yet

[Mack]

Just for the record, you don't need to kill Spirrigans in high level areas to get Umbral and Darkened eggs (I can only confirm Umbral but I'm pretty sure its both): I got an Umbral egg off of one of the many Spirrigans around The Silver Bazaar south of Horizon.