This one I did mostly sewing by hand. The pants I just bought, and sewed bigger pockets onto them. The black shirt I had owned for many years, but decided to convert it into what it is now. The vest is the part of this costume that is unfinished, though it IS almost done =D
EDIT: Vest be done. XD

The Keyblade was pure luck. The frame (handle and length) is actually a Swiffer broom with one segment missing. I made the shape out of aluminum foil, put masking tape over the entire thing, then used 'flat' spray paint for color. The keyblade by itself took me 4 days of constant work (no sleep @_@)