Since Stichstock fell out of favour but Quidditch is so popular, it might be more popular if some quidditch elements were added, without taking away the essence of what Stichstock is.
Instead of one bladder (or whatever appropriate, animal friendly, alternative
), there could be a bunch of varying colours with a golden one in the centre. The rope could be shortened to make them slightly easier to reach. Different colours respond to different values and players would pop them, trying to score points and get to the bladder in the middle. Once this is popped, like catching the snitch, the game is ended with a large sum of points to the player who does so. The points are added up and like quidditch, it could be possible to not pop the gold bladder and still win if you popped enough outer bladders. I think this would be more fun as well as it's not all over the second a player actually gets near the one 'ball' in play!