My favorite holiday is rapidly approaching. Great time to do crafts with kids (Christmas too). Here is a great little book that will walk you through step-by-step in creating some monster projects for Halloween. 18 projects in all. Origami Monsters
Updated post here: http://www.tambulounge.com/2011/09/04/halloween-monster-origami-book/ Origami-Club.com has step-by-step instructions on how to fold your own ghosts, witches, and other classic Halloween creatures. It also includes a church in the group. Nothing says Halloween like a church.