Pencils can be offered as a gift set where each pencil can be broken off of the set to form a sort of jigsaw puzzle. High quality print methods can be used to print complex artwork like scenes from movies or cartoons in the case of licensed character promotions.
Children can snap off pencils are they are needed and reassemble them to complete the puzzle. A simple educational product, they can also be used in back to school promotions.
Puzzle pencils are also good promotional products for creative projects, especially since they are very much involved in creative process of drawing.
People can buy and collect all the different designs available.