Perhaps a little Louis Armstrong? "If you have to ask...."
But seriously, Oz is indeed a custom saber maker. All hand made personally by Oz, he pretty much can make anything you like, but they do cost the same as an LE, with the same amount of lead-time as an MR pre-order. I only have three of his sabers, but they are quite wonderful. If I can find the box tonight I'll put all three together to show them off. Great stuff. ;D
There are some great tribute threads of Oz's work over at RS as well.