Making cubes out of business cards is easy, and will impress your friends! [My friends actually are this easily impressed]
More modern equivalents include the black fax and computer-based denial of service attacks.
The disposable personal organizer. It has a video.
I didn't know there were so many types of graph paper.
For a personal touch, print labels and photos on the front center of paper to give your cd holder some pizzazz. (Pizzazz!)