As you probably know, there are deleted scenes to SpongeBob if you live in USA. The scenes were banned for who knows why. But if you havent seen them, here are links to them.
Just One Bite link:
Both of these still show in places like UK, Australia, Mexico, etc.
And there is one more deleted scene that is only on the SpongeBob Movie DVD. It is showing SpongeBob and Patrick on dry land and they see Sandy up there. But she looks like an ordinary squirrel. Patrick barfs every time he looks at her. Then the cops come and Sandy shoots them with her acorn gun. She runs away. Then two live action dudes that look like SpongeBob and Patrick say, "Did you see that?" And then a guy that looks like Squidward pedals by on a recumbent and says to himself, "Morons." Its under Special Features. However, it is just an animatic and at the end of the animatic reel.
I know I forgot some but here they are. I couldn't find a link to them though:
There are two deleted scenes to the episode Shanghaied. They were part of the You Wish contest back when this episode first aired. Viewers could vote online to see whos wish they wanted granted. Obviously, SpongeBob's wish won and still airs today. However, on the DVD with that episode on it, they have Squidward and Patrick's wises featured. Squidward wishes he never met SpongeBob and Patrick, and Patrick wishes for a pack of gum. Personally, I never saw them, though.
And there is one goof scene that used to air on Sandy's Rocket. Back in 1999, they had a promo at Burger King where they had a scratch-and-sniff portion in that episode. You would scratch and then sniff when the screen told you to at the part where Patrick gets his toothpaste in SpongeBob's peanut butter. This was supposed to be a one time thing, but the SCRATCH NOW! sign was still left on the screen months after. It was not until 2002, (3 years later) that the SCRATCH NOW! was finally removed.