These crafted round fans are called Uchiwa (pronounced Ooh-chi-wah).
This is a must in our office these days. When the temperature rises our office gets quite stuffy. And with the air conditioning set at 28C, these uchiwas are in full use in the afternoon!
This is a small cafe that only had these Uchiwa and a fan sitting on the floor, but with the windows opened, it was surprisingly breezy and felt great. Wish our office could open our windows, too!