Lots of player shops in Junon carry those things.
Cloths at the vendors near ITz. Quality 50 and lower. Higher than 50 need to be hunted.
Lil Devil feathers. Easier to Buy. Going rate between 5000 and 25000 Zulie. Depending on how bad you want them.
Dropped By
Antares, Elder BloodBat, Gem Goblin Warrior, Giant Antares, Gold Mine Goblin Mage, Poisoned Antares, Scavenger, Warbiz
PP Thread Threads : Cost between 1000 and 5000 Depending on how bad you want them.
Dropped By
Elder FrostWorm, Elder Slag, FrostWorm, Little WormGon, Shadow Wolf, Slag, Winter Maul, Wolf Keeper, Yeti Captain, Yeti Hunter
Dropped On
All monsters in the following map(s) drop this item:
Kenji Beach, Koto Polis, Magic City of the Eucar, Arumic Valley