Yunomi

Yunomi 湯呑み literally means to drink warm water. It is the generic term for a Japanese handless tea cup. There are various kinds of tea cups with specific names depending on the use. Yunomi usually refers to the everyday kind of cup. It is a cynlinder shape and comes in various sizes. Sometimes they come in a set of two, one larger and one smaller. These are "couple cups" called Meoto Yunomi. 

                         This is a lovely Kutani tea cup

         This lovely Yunomi is Mashiko Yaki by Hamada Shinsaku

This is a double lined Yunomi that is a signature type of Yunomi from Fukushima called Obori Soma Yaki or just known as Soma ware in the west. 

These are Yunomi from Miyajima, the island near Hiroshima. 

         Agano Yaki Yunomi by Kozuru Gen

                Hagi Yaki Yunomi by Jyozan

        A pair of Karatsu Yunomi by 14th Nakasato Taroemon

Here is a lovely link from a showing of the many styles of Yunomi made throughout Japan:

http://www.city.himeji.lg.jp/kougei/04kikaku-tenji/04img/20131019yunomi.pdf