Arcade Gangplank/Disco theme.
The skin could be made into an arcade themed skin or "Saturday Night Fever Gangplank" Going along with the scurvy/remove scurvy being a fever, I think it would be a fun addition if anyone understood the humor behind it. Perhaps make him do funny disco poses and have his ult drop disco balls or Pinballs and make the sounds of pinballs in either case.
When he removes scurvy, disco balls drop instead of oranges floating over his head. I don't have fancy editing software, so here is my MS Paint version :P
Please add any ideas you may have to contribute to this theme and ideally support it :P We could use an arcade top laner.