When we were in Japan we were able to visit the Urasenki Research Centre and were entertained at a small Tea Ceremony.  Their gardens were very lovely and I was struck by the bamboo on the left of this picture which has bright green stripes along its stems.  This wonderfully fired Mizusashi was in the window of a shop selling Tea Ceremony goods just next to the Research Centre.  Sadly, I was unable to obtain the name of the potter.