Great idea for traveling or road trips. Get a big map of the US, and take a picture when you visit a new state. Cut the picture out in the shape of the state, and glue to the map! I'm definitely doing this!
picture shapes - what an amazing idea, i would have never thought of that! [actually this is not "picture shapes" it's how to make shaped bokeh but still a good technique of attaching the paper to the lens]