Computer cases often just end up on the street for garbage pickup, but Apple's G5 was quite an elegant design, perhaps to elegant to be just abandoned. It stayed in production for almost ten years, so there are quite a few of these around. German artist Klaus Geiger thought they were too good to just be disposed of, so he upcycles them into office furniture and benches. The front doors open up to provide storage.
They make a nice bench; they are really beautiful objects. It is, again, an example of adhocism, defined by Jencks and Silver:Basically it involves using an available system or dealing with an existing situation in a new way to solve a problem quickly and effectively. It is a method of creation relying particularly on resources which are already at hand.
They bring a second life to abandoned objects; They also make good storage units.