Mr.Hatter's Old Hats

[Laenaya]

Some are made by Hatter Jr. and the others have separate quests. Here's what I've found in Reboot Changelogs:

2013-AUG-21

????New quests are added that allow you to create the following gears:
????- Gold Feather Hat* (Start it with Natalya inside a house in Moscovia)
????- Dominoes Cap* (Start it with a Dominoes Recruiter in Alberta, Yuno or Payon or go see the Manager directly inside a house in Payon)
????- Bamboo Hat (Start it with Carl in Amatsu)
????- Majestic Fox Queen* / Majestic Fox King* (Start it with Granias the cat in Payon city)
????- Super Summer Suit (Start it with Lolah in Brasilis)

2013-10-29 Reboot Changelog:

????New Quest: to get Homunculus headgears* (the custom Drooping Amistr and Hopping Filir as well as the official Lif Doll Hat and Vanilmirth Hat). It starts with Scientist Alex inside Lighthalzen. (Thanks Alex)
????New Quest: to get Side Ribbons headgears* (Purple, Green, Blue, Red and Yellow), find the slot machine inside the Comodo Casino. (Thanks Ptah)