Is the primary purpose of this fund-raising for the church?
Regarding affordable kid-friendly presents, I will say that one of my treasured possessions is a microfiber scarf made for me by my daughter. All it involved was cutting a rectangle, and then having her cut "fringe" about an inch wide and two inches deep on each end. Although you could sell these already made to children, it might be nice to have a kids' craft area where the children could cut the fringe themselves after selecting a colored rectangle.