There’s a total of 59 Pieces of Vanity Gear to find throughout Tsushima, but 39 of those can be acquired through Haiku and Pillar’s of Honour.
Ivory of Woe - South of Deep Forest Lake
Head South of Deep Forest Lake to find a house, then look on the mat at the entrance to find this vanity item.
Seiryuu’s Glare - Sago Mill
Head to Sago Mill, then go down the stairs and enter the building to the right of the bridge to find this vanity item.
Sago Blue Headband - Cedar Temple
Head to Cedar Temple, then climb to the top with the assistance of your grappling hook to find this vanity item.
Skeletal Vengeance - Stonecutter’s Village
Head to Stonecutter’s Village to find this vanity item sitting on the wooden table in the building.
Crooked Kama Headband - Jogaku Temple
Head to Jogaku Temple and climb to the top with the assistance of your grappling hook to find this vanity item.
Tengai - Jogaku Temple Lake
Head West of Jogaku Temple to find this vanity sitting by a grave near the lake.