When we were kids, our mum used to take walnuts still in shells & put a tissue around it and tie it with some cotton to make ghosts... we would draw eyes on them & hang them in the tree for trick or treats.... we also carved pumpkins (obviously not something for play group) We used to make masks from paper plates, go on ghost hunts, bob for apples.... paint faces. We used to do spiders in the egg cartons with 1 egg whole and put pipe cleaners through to make legs....

Trying to come up with them all.... but there are heaps!!! I may volunteer to go into Montessori that day!