What quote would you want to see as a future event stamp?
Example: as "Interesting!"
I will forever question why the PoPiPa Chant isn't a stamp after all this time, but like the Happy! Lucky! chant, that's not happening with just one stamp. So that's out the picture. I would love to see "Rootin' for you!" from Rimi or Himari or... really any character the words suit. I don't think there's been a stamp that 'cheered people on'. We also don't have "Thank you. / Thank you!" stamp. The first one could be formal from Ran/Yukina etc. while the second one could be Kasumi/Aya etc. Either polite or thankful. Both work the same for me.