Recycle a toilet paper tube: Cover in black paper, glue on wiggly eyes, wrap with gauze to creat Halloween mummy treat tubes....Hmmm I think these would be super cute to use as containers for Halloween classroom treats. You could cover the bottom with construction paper or just fill it and put the whole thing in a cellophane bag.
ghost bowling. This would be cute for a school fall festival or Halloween party. I could put glow sticks in the 2 liter bottles. Cute idea! (label the pins with numbers 1-10. Then have kids find the sum of the pins they knocked down to get their score.)