When I was a student at the International Academy of Design & Technology in Toronto we were given an assignment designed to make us plan a Postage Stamp design without using a computer. For some reason I themed it after Lego™ taking over the world.
The first illustration was pencil only, followed by pencil + ink, then pencil + ink + colour, and finally only pencil + pen.
Materials used: Pencil, pen and Crayola coloured markers