Lego Fraction game: Love this example for students who are into Legos. This is a great way for students to learn commonly used fractions in an exciting way. It supports the NCTM standard of representing commonly used fractions.
This is why I keep all my magazines! I remember using magazines multiple times for school projects! But this-Really cool idea - cardboard doll house with magazine pictures. Could do with a firehouse/something more boyish, too.