hauchiwa
From the Wikipedia article on tengu:
Tengu are commonly depicted holding magical ha-uchiwa (羽団扇 "feather fan"), fans made of feathers. In folk tales, these fans sometimes have the ability to grow or shrink a person's nose, but usually they are attributed the power to stir up great winds.
Aya Shameimaru from Touhou is one of the more notable hauchiwa-possessing characters, and is frequently depicted with one. While hauchiwa typically have a vaguely leaf-like appearance anyway, Aya's very definitely resembles a maple leaf (down to its coloring and use of fewer feathers in order to specifically achieve a leaf-like shape).