How does it sound to grind Cosmogone boxes?
It is 2 actions to get to the top of the dome (one with a glasswork challenge), one to fill 5 boxes at once, and one more action per box to give to the museum.
With 5 empty mirrorcatch boxes, it is 8 actions for 7250 minimum Gratitude, 9210 for me at high stats (~20 levels short across skills), which means 906-1151 Gratitude per action.
With 10 empty mirrorcatch boxes, it is 14 actions for 14500-18420 Gratitude, so 1035-1315 Gratitude per action.
It’s a very good grind, and it won’t last more than a few hours. Better make hay while the Cosmogene Sun is shining!
Shame on me for not preparing for this event by drowning, I guess. Not sure if it’s worth rushing a quick suicide by boat just to get the full neathbow hand-in echo.
A complete Neathbow seems to be worth over 300 echoes more than the colors individually. And it’s not even a full death, more like 1/3 dead worth of change points, plus mirrors hunger. Seems worthwhile to me.
I have three Oneiric Pearls but I really can’t be arsed to sacrifice them for three filled Mirrorcatch boxes. And I only have one empty Mirrorcatch box.
Anyway, after contributing many relics and bones, I now have 200k plus of Curator’s Gratitude. Unless there is a really good reason to go above and beyond that…
Some updates from Discord:
Since this seems to cause an undesirable level of anxiety for some players: You need 20k gratitude (so the equivalent of 200e) to get a unique reward; I’ve changed the quality’s metatext to reflect this. Note that you’ll still be able to generate gratitude for it until the event ends, so you won’t miss out if you miss a day or phase of the event.
There’s really nothing permanent you’ll miss out on if you don’t manage to sell a neathbow box. Think of this as… more of a gift for the players who’ve been hoarding them than anything.
I think Bruno noted that gratitude can be converted to scrip?
Bruno wrote:
Well, to an item that is sellable for scrip.
Implausibility comes from brass skulls, and failing certain checks.
So it’s easier than you think.
For example:
Was worth 14950 gratitude.
Human is the easiest:
Base value should be something like 2750 * 4 + 6250 = 17250 pennies.
Ah, I was just about to post that I really hoped that was the case. Good stuff.
The mirrorcatch boxes are not lost.
And the Optical Exhibits are completed!
DAMMIT, I spent most of today at the Khanate completing my Neathy rainbow and came back to find the whole thing locked!
I have a similar story: I returned from Parabola with all my boxes filled with Cosmogone and yes, they were many so I was not as quick as I might have been and when I finally arrived I was informed that they can not take any more light. that leaves me stuck with Cosmogone in all my boxes.
would be truly amazed if somebeing could point out a way to empty them again … otherwise I will have to lean on the poor guy in Fiddler’s Scarlet far to often …
I see the Optical contributions have maxed out.
I only have one mirrorcatch box, I managed to get inside Parabola several times, climbed the Dome of Scales and harvest a Cosmogone-filled box, then submitted it to the museum.
Take note that I’m a Silverer, so it only costs me 50 honey per entry into Parabola. Other professions might have to pay a higher cost.
Now onto bones and relics.
I do not dislike the Bone Market - it has its uses, it can be profitable, and it is definitely different! But it is also frustrating, with a bunch of prerequisites to make a sale that are difficult to track.
And thus, the experience does not change for this event, case below in point 
I’ll be back !
Use this great calculator next time. Heck, use it every time to check things!
EDIT: You can get Sphinxstone before the end of phase 3 if you want a new vanity quality.
Me too, friend, me too. But I’m still going to finish a Neathbow for myself
As for the skeleton, anything non-amalgamous would be acceptable, such as a mammoth size dino with sabre tooth head and four holy feet and a lion tail.
Thanks! It’s a great tool indeed 
Looks like we’re almost wrapped up with bones, and the relics will be waiting for a bit longer. I wonder if the pace will pick up once osteology closes? I know some higher-level players have intentionally been saving that so early-game players can contribute.
Thanks for sharing, that’s really very useful to know! And I probably wouldn’t have thought to check the metatext again.
Again, very useful information! Thank you for letting us non-Discorders in on the know.
Who could possibly not want a new vanity quality?! 
