Now I know many people don't like the filler episodes. In fact many hate them as being the worst episodes of the series.
So here's the thing. What would be your ideal filler episode if you would have the chance to make one? You can have more than one by the way.
Anyways one idea I came up with was this.
Title: O' Captain! My Captain! The Great Ussop's finest hour!
Summary: Luffy get's sick for the FIRST TIME EVER (at least in the series) and Ussop finally get's to take on the role of substitute captain for the day until Luffy get's better. Ussop is excited about this to the point where he even tries to boss the other members of the crew around but soon learns that being a captain is not all fun and games. In the end Ussop is just glad to have Luffy resume the role of captain and hope's that he can be as great a captain as Luffy one day.
This is just a joke topic so have fun with it. It's not to be taken seriously of course.