Materials: As many pieces, sizes and shapes of wood as possible (long, short, thin, fat, blocks, etc., etc., etc.), hammers and nails, white glue
Instructions: Turn the Guides/ Princesses loose to build and construct anything their creative minds can think of (towers, bridges, etc.) Big Guides can help, too. After 10 to 15 minutes or so, have each child explain what he/ she has built. Award prizes for best, tallest, oddest, etc.