照る照る坊主Teru Teru Bozu

Teru teru bōzu (Japanese: 照る照る坊主、てるてる坊主; literally "shine shine monk") is a little traditional handmade doll made of white paper or cloth that Japanese farmers began hanging outside of their window by a string. In shape and construction they are essentially identical to ghost dolls, such as those made at Halloween. This amulet is supposed to have magical powers to bring good weather and to stop or prevent a rainy day. "Teru" is a Japanese verb which describes sunshine, and a "bōzu" is a Buddhist monk (compare the word bonze), or in modern slang, "bald-headed"; it is also a term of endearment for addressing little boys.

from Teru_teru_bozu (Wikipedia) CC BY SA 3.0