metaphor for an odd item or having a taste for such an item
山帽子
kousa dogwood (Cornus kousa), Japanese flowering dogwood
かんかん帽
boater (flat straw hat)
目出し帽
ski mask, balaclava
揉烏帽子
soft, crumpled, unlacquered headwear (often worn by soldiers under their helmets from the Kamakura period onward)
亭主の好きな赤烏帽子
Family members should fall into line with the head of the family even if his taste is a little odd, like wearing a red eboshi, which is ordinarily black