Pendulum Pinograph Toy
[light + pendulum + spirograph + instant camera + pinhole camera]
How it works: 1) a colored LED is attached the pendulum, 2) a pinhole camera lies beneath the pendulum 3) swing the pendulum and capture the image, 4) Develop the instant film. A simple spring push-button and gear/crank/rollers mechanism are used to develop the instant film.
*Instant film removes the need for developing chemicals and a darkroom, making the toy safe and more appropriate for the given age group.
The double pendulum allows for movement along two axes, instead of a single point, resulting in more varied outputs. Covers on the light can also be changed to draw with different line widths.
The width of the pinhole is calculated to work with the height of the box, in order to capture the light within the area of the instant film.