You might like to fold a few ghosts for Halloween. This design of mine is very simple and effective and has the advantage of always producing something unique – no 2 ghosts will be the same.
I have used the crumpling technique developed by Vincent Floderer (in this YouTube clip he is making a mushroom). The secret to success is to crumple it up backwards and forwards many, many times.
If you wet-fold it with a dilute solution of PVA it will set hard, becoming much less fragile.
I remember on one occasion I put an LED bulb on the top of a thin stick which went all the way up into the ghost's head to illuminate it from within. It looked pretty cool in the dark – imagine a whole room full with different coloured LEDs brightening and dimming gently at random!