Rainier Spehl, a woodworker specializing in display materials and exhibition stands for clients like Nike, Dior and Gucci, has built a wooden laptop slipcase for Apple portable computers. There's no price - we assume that if you have to ask... Spehl us developing his own line of furniture and products (including some interesting public compositions) and takes commissions from a variety of private clients including the large firms mentioned above.
Some of his work is a little stark for my taste, but there's no denying his excellent integration of grain and texture into otherwise very modern contexts. A Craftsman approach to materials pops up in the most unexpected places!
Alternatively, check out Brian Kelly's pretty plywood & cork laptop case.