Shoe-Box Guitar -- Consider this old-fashioned geetar a much needed break from Rock Band. (You might want to start saving the rubber band that wraps your daily newspaper, by the way.) Click on pix for full description on how to make Shoe-Box Guitar.
Fold a piece of cardboard or card stock or whatever type of rough material you have around the house in half. Depending on the size of the piece, glue an equal amount of buttons on each side and make sure they line up. If you open and close the rough material real fast, it will sound pretty cool.