The Legend of Zelda - Mirror of Twilight, Twili Midna's Main Weapon

It's a thing of beauty, ain't it?

There is a fan theory that since there is a significant lack of things to produce fabric in the twilight realm, they used shadows instead to cover extremity’s. Fabric thus became a luxury item used only by the royal family, since the only fabric is the bits and pieces the first twili wore when they were banished.