According to the Order of Discalced Carmelites` website there are nine Carmels in Japan. I managed to find photos of the one in Yamaguchi which I am posting below.
They also make slippers which are sold around Christmas time and can be ordered through your parish office. This past Advent I saw a notice for this in my church bulletin but I did not order any. Here are photos from people who did order a pair though. I think they cost around 2000 yen.