Let's be realistic: What would you like as a memento from the end of the world?

[Felis]

We have already mementos. White Ravens, Dalamud's Horn and the imperial hats

a memento for the last 7 days could be a quest were we obtain a code. Write down the code to register it later to get a memento item without SE need to save the account datas again ^^

Maybe not an item code, but a "100% you are in" beta code? ^^