I can not take credit. This is all my 4 year old's idea. He wanted to have a haunted house that would spook the passerby's. Our window has a deep window sill. He calls it his lookout. He wanted a haunted window to peer out of and spook people. It also needed a floating ghost.
We used large construction paper, sissors, dental floss, glitter glue, white glue, and stickers. Together we drew and cut the pieces. Dean decorated, I made the door and lettering. The ghost face was drawn and cut by Dean. We hung the ghost on a hook with Dental Floss so it really looked like it was floating. We also added coloured lights to flash in the boo house windows.
The end result was pretty cool, althought I could not capture a decent picture at night. It looked like a silouette in the window and you could easily see the coloured lights shining through the haunted house.