Halloween Activities for Toddlers and Preschoolers: Spooky House

We took this project on as a family and it turned out to be less high-maintenance than I thought. An official spooky house! I'm sure you pros are out there...those of you who have done this before, but here's my simple "beginner's" formula for a successful spooky house:

Materials:
Graham crackers
black & white frosting
candy corns (and pumpkins)
marsh mellow ghosts
sprinkles