Each school fundraisers differently, it must be extremely harder in area's where there are so many people struggling, many schools do actions or sell stuff the kids have made for your school with limited funds showing the kids art work, one post per child with them explaining the process, this is where you could ask the mothers to come and help so all you need to do is type and get the kids to take pictures so it's a learning process for them also.
Something that is very labor intensive but would that help with bringing gifts to benefit the kids to have an extra snack or hot meal, it would be well worth it.
or asking businesses for donations for art supplies or tshirts were the kids could design stuff to show thru the steemit blog (where you would offer them free advertisement in the blog posts where their donation gifts are shown.) but also to sell that could cover their education and meals for the longer term.
It's great to follow the progress that is happening with the kids.