These guys know their Koa wood! If you’re in the market for a quality solid Koa ukulele made right here in Hawaii, this is where you need to go. Big Island Native, Jorma Winkler, has been quietly crafting some of the finest Koa wood ukuleles in his hole in the wall factory located right behind BMW of Hawaii. Although I’ve heard that limited supplies may be available at some retail shops, I highly recommend dropping by to put in your order direct from the factory.