Knife and Saw. This elegant little double-duty shelf is made from a dark walnut and certainly beats the pants off any other apartment-style bike hanging device I've ever seen. Also,it doesn't hurt that Chris has a sweet looking, yellow fixed gear bike to display in it. Your street-beater rat bike may not look quite as classy.
I would love to see a Wabi-Sabi version of this shelf built from driftwood or something. More photos and information on commissioning Chris to make you your own bike shelf can be found here.