You will have gathered by now that I like simple ideas, often the simpler the better and you dont get much more similar than ghostie paper chains.
The only prep work required by me was to fold the roll of paper (ikea) and cut out the ghosts (I didn't even need a template - smug). I then drew the eyes and mouth on one and maximad did the rest. Voila, effective, simple, inexpensive and family inclusive halloween decorations. I saw this originally on Skip to my loo and she has templates there if you need them too.
Keep an eye open for more easy and simple Halloween crafts you can do with children.