I bought 
Ten Timid Ghosts by Jennifer O'Connel for my son at a grocery store checkout line (ha!) and I tell ya, he loooves it.  I've wanted to "make" it for over a year and I finally did it!  In the story, a witch moves into a haunted house that 10 ghosts live in.  She gets the ghosts out by scaring them with her spooky props (or dressing up as something spooky - like a vampire).  It was a pinch labor intensive, but I think I'll get some wear out of it.  Though I love the book and intended the house to be FOR the book, I have found it cumbersome to actually use.  
I've updated this post below and added a ghost rhyme a co-worker found online for me, and it seems to work a lot better.
 
The haunted house itself is made of a box lid.  The ghosts in the haunted house are made of cardstock with a small magnet on the bottom. I needed a way to get them in and out pretty easily, and magnets just seemed to be a good idea. The back of the house is below.  The ghosts extend past the curtains by a bit so they are easy to take off as they get scared away.
Here is a cute ghost rhyme found on 
Twigglemagazine.com that turns out to be super cute for this house.  Obviously, you'll change it to 
Ten Little Ghosts and adjust accordingly.  I added my felt faces to sticks so they can pop out, scare the ghost, and then be put back.  All in all, this rhyme works better than the original idea I had - one of those cases where the book works better on its own!
Five Little Ghosts  
Five little ghosts in a haunted house at play, 
Along came a funny   skeleton and chased one ghost away. 
Four little ghosts in a haunted house at play,
Along came a giant monster   and chased one ghost away. 
Three little ghosts in a haunted house at play,
Along came a tiny spider   and chased one ghost away. 
Two little ghosts in a haunted house at play,
Along came an ugly witch and   chased one ghost away. 
One little ghost in a haunted house at play,
Along came a big fat cat and   chased the ghost away. 
Can you find the ghosts and say:
1, 2, 3, 4, 5 ghosts come back and   play!
Flannel Friday is having a Halloween Extravaganza today; 
Miss Mary is hosting the Boo Bash! You can get overloaded with Flannel Friday fun over at 
Pinterest.  Happy Halloween, everyone!