Please go to : http://www.bigscreamtv.info/
Here is a way to create a "Peppers' Ghost" illusion for your home to scare trick or treaters.
Three different versions are available. The crystal ball version is reminiscent of the one in Disney's "Haunted Mansion"
I have just set this up in our front window. It really looks good.
There is also a link that gives a very interesting history of "Peppers' Ghost and why it is misnamed. I had never heard this information before.