Charles Lushear operates Bohemian Workbench, a custom workworking shop in Venice, California. He is a master of his craft. Lushear has made works that geeks would especially appreciate, such as tables inspired by Nintendo and Batman.
He also makes stringed instruments, mostly guitars and ukuleles. His Elmo ukulele is particularly impressive. I'm sure that Elmo could use it to perform his signature song, if you're willing to place such a beautiful piece into the hands of a three-year old.