It's been 5 years, and because of the way SK's forever locked costumes and may as well still be locked accessory system works, items can go extinct or disappear completely. Call it being wishful that they see an honest re-release after all this time, but post items you think really just don't exist.
For example:
*Hunter Items - first recolor promo. Horrible 45% odds of even getting a recolor, and nobody liked the color back in the day. Also it was during the old billing system where it was (I think?) 1 box per 10$ spent, which meant less boxes being opened.
*Moorcroft Furniture - furniture items are locked in Guild Treasury, so accumulating a nice amount to decorate with in an active guild relies on being upper management to actually use and decorate it with. Re-released once, but only years ago.
Feel free to post more specific examples like:
*prismatic scarf - not in any of the new lockbox item rotations, and iron lockboxes are non-replenishable
AFAIK I haven't seen another person with a Twinkle Aura, so I might be one of the few who still has one. (I attached it to my Spiral Cuirass because I was a ⑨ back then)