Bear with me.. there's no real image out there that I could see EXACTLY how the costume looked, so I made up some parts.. Including the keyblade.
Yes, the keyblade is entirely made up. I figured I'd use the disk weapon as the "blade," and the launcher/catcher as the shaft. YES. <s>Half assed</s> MADE UP!
This is also the Christmas present to Kia, a big time fan of Tron.
Have I ever seen the movie? No.