Maybe I'm too proud but I would NEVER have asked people to do anything but show up unless someone had a husband who was good at grilling. BUT ask for money?? NO.
I am a single Mom and I have done her parties all by myself, including one where I invited 36 kids from her class, we had a full meal and cake and ice cream by the pool in our development.
One year when I could afford to do a HUGE thing, I bought cupcakes, both some for boys and some for girls, milk, punch, cups, napkins and took it too her school and they had that as snack.
How is it someone elses responsibility to do that?