They're Coming

Aww, got my hopes up =[
Anyway, the perma one is a reward from Pigmy, the kMS version of Gach, and the temp is is a part of the Taking Pictures of Tigers event. Shoulder Pads were released around the same time as Dual Blade, but were actually part of the Year of the Tiger events rather than being part of Dual Blade.

That event is as follows. You have two options for the feathers in kMS, you could either trade 5 feathers to get a chance to play Dual Blade on the test server, if I recall, this event was from before they even released Dual Blade in kMST, or you could hold on to them until after the event in order to use them, like the boxes, for a chance at getting a blade. In kMS, the scrolls for blades came from the boxes themselves, and were fairly common.

 This is the pigmy update notice for the Permanent Tiger Claw, near the bottom

Oh okay, thanks. That explains why the feathers are use items. Oddly though, the quest in gMS also involves turning in 5 feathers to cassandra, and since tespia is closed, it'll probably relate to some other web event.