Saw some nice used ukes on the Tantan site, in Japan. They often have unusual items, seldom seen in US. https://www.tantanukulele.com/%E5%95%86%E5%93%81%E6%A4%9C%E7%B4%A2%E3%82%AB%E3%83%86%E3%82%B4%E3%83%AA/used-vintage/