In the spirit of Halloween here's a spooky trick we learned, many moons ago, on The Magic School Bus:
Arnold's cousin, Janet, was disappointed by the all-school field trip to a light show, as she wanted to see a magic show. She tells the class she could do a magic trick, but she can't because of the ghost that haunts the theater. When they leave, they find Arnold missing. When they enter again, they see his "ghost". Keesha, the skeptic, is convinced that it is really a trick done by Janet to scare them.
Ah, it's an old magician's trick called 'Pepper's Ghost'. You can Do It Yourself, you know.
2) Make a medium sized window in one side of the box so you can see in.
frame so it can fit in the box on a slant.
object without lighting up the back of the box.
in the back of the box.
...but remember, the better-looking the ghost, the better the trick.