hi, is it the new jackass collection box set in a silver box,
its always had stickers till recently when i grew up and took them all of, it had a one of front bumper, but got rid of that too. kept falling part.
Im guessing its this one (grabbed some screen shots for you, click to make bigger ) -
I think thats all you see of it but I just did a quick scan of the episode so maybe theres more...
The Gumball was Episode 7 on Series 3