Here is a video Avery and I made for Hershey Bar Haunted Houses. I thought you might like to revisit it as making haunted houses from chocolate is a fun family tradition to do year after year and it's a crowd pleaser for all ages.
If a chocolate haunted mansion is too big, or too much sugar for you, you can always make a smaller house, which is just the left or right side of the mansion. For us, making the grounds with the pumpkin patches and tomb stones was always the best part anyway.
Alternatively, the whole family could work together and make one large house to share.
These are some of the houses the boys have made over the years: