Perhaps the answer is then, for all parents who can, to make a donation at the beginning of the year and have no events?
We bandied that idea around one year.
Then everyone complained there'd be no summer/Christmas fete, school disco, etc
You can't win
We don't do loads of fund raising - 2 fetes, each year group does a cake bake, we trialled a Christmas shopping/pamper evening last year which went down really well, an end of summer term school disco and a few cinema nights.
We also have stuff like Yellow Moon/Avon cash back thingies where if you're ordering anyway you stick in the school's code and we get 10% cash back
We do a load of other stuff which is just for fun - pancake races, Easter egg hunts, Father Christmas, ice lollies at sports day, etc - no charge for any of that. We haven't always got our hands out