In being on the look out for nice Ukuleles I see the work of a number of full and part time luthiers. The instruments they make look very nice and worthy of note.
Cody Seeler - Seeler Guitars
Comes from the Big Island, started in 2004 and makes Guitars as well. I have only seen Tenor Ukuleles but there is the Brahguinha too
Dennis Kato - Mako
Comes from Maui, I have seen Concerts and Tenors and a lot but not all of them have the little fish on the soundboard
Stanley Ishikawa - SI Ukuleles
From Pearl City, O'ahu, who creates Concert and Tenor size Ukuleles, usually out of solid koa. I don't know much about him but he started making Ukuleles some time before 2005