This is a small and simple "gingerbread" house. Even a 5 year old kid can make it. It's also a great and inexpensive project for a children's Christmas party (you just have to cut the cookies in advance).
You'll need regular graham crackers, white frosting and whatever candies or sprinkles you have (for decoration).
Put some frosting on a paper plate to make a base for the house. Make a door on a side-wall cracker using frosting. Stick the walls into the base. Then, put some frosting on the crackers that will make the roof and cover the house with them.
Put some frosting on the roof. Decorate the house.