Fort making kit

If you have bored pre-teens hanging around the house on a rainy day, a fort making kit is a great way to not only exercise their youthful imagination, but also their creative skills and thought processes. While they are building a fort, playhouse or castle, they are also building their brains as they consider all their building options and how best to realize them with what they have to work with.
Fort making kit:

Fort making kits pictured:
Top: Toobeez 114 Piece Super Fort Kit
Bottom: EZ-Fort