Trying to raise money for a chariatble foundation at school. Any good ideas?

Okay, we’re raising money for a charitable foundation, and we need good ideas. We already have done (and can’t do again) or are thinking of:
A raffle
Bake sales
Dress down day (where we can wear whatever we want if we pay like 3 dollars, instead of wearing a uniform)
A talent contest same idea.
Some kind of quiz or [...]