Apple packaging is so pretty, it's kind of a shame to throw it out. If you can collect enough boxes, one option would be to create a handsome bureau like the one pictured here.
Unless you go about acquiring these boxes by purchasing a bunch of MacBooks, this would be a fairly cheap piece of furniture—kind of like those cardboard dressers you had as a kid. Remember those? Man, those things sucked. [Imageshack Thanks Brian / Kristin!]