Perhaps my favorite Hagi glaze is Kairagi or Shark Skin, which as far as I understand is so named because it was said to resemble the sharkskin placed over the handles of Samurai's swords. But the characteristic appearance of a Kairagi glaze is a white straw ash appearance glaze with lots of exposed clay underneath with the glaze crawling at many unique angles.
This hohin (hobin ) is one such glazed item, while the Yunomi pictured below is a second. Both of which are by the artist Mukuhara Kashun.
These are the only two Mukuhara Kashun pieces I currently have, but I am loving them every chance I get. Although I will say I have only seen this glaze done by one other artist and Kashun is by far the better of the two in terms of execution of this glaze. The most amazing thing about him pulling off this glaze while Hagi is known for showing off use through staining, even these pieces in pristine condition show stains in the wrinkles in the glaze.