How do i get hair accessories?

i was wondering how to get the glasses... but any info on any of the hair accessories like pirate hat nad pig hat and stuff. thanks!

Some can be obtained from fishing for materials and crafting them (recipes for Common craft are obtainable at some clanhalls or from fishing). Some you can win from minigames at Fantasy Island. Others are rewards for various quests, like those bug/mantis hats from Stakato Nest quests. And there are some you can buy with NCoin from Shop or Galleria.

There are "glasses" (listed as goggles) and a pirate hat available for purchase for real money in the L2 store ingame. Not sure about the pig hat, though.

For the glasses specifically, there's a chance of getting them through the level 80+ Reclaim Our Era quest.