Japanese are interested in tea ceremony, especially in the Sengoku period, so some ancient crafts have come clown to modern times such as the wooden teacup set.
The wooden teacup set is designed by Japanese designer Yukio HASHIMOTO. The set is named as Alpha, I think it must come from the unique shape of the cup. The curve design is made by hot water, very special. One set includes a wooden cup and a wooden saucer.
Alpha is priced at ¥15,750 (about $174 USD). Free delivery up to ¥5,000. You can get it from Generate.