In 2007 I am pretty sure that no 9x9x9 Rubik's existed in the world. Certainly not a properly proportioned one. On 23rd February I made a new post on the twistypuzzles forum. The post was a hoax and contained the pictures you see below as well as the link to a carefully edited video.
The way I put stickers on the cubes was extremely important to carry off the hoax. The aim was to use the three cubes to give the impression in the video that just one had gone from totally solved to a six sided chequered pattern. To achieve this each was stickered differently and by swapping the puzzles during the video I could give the impression that there was just one fully functional puzzle. I have a section of unedited video here. In this video you can see how I carefully swapped puzzles. When this swap was edited out and camera angles changed it looks like only one puzzle was used. If you view the original video again here you will see what I mean. I will repeat that ALL of my other puzzles are real and fully functional.