If you don't know what a star light projector, look it up! Here's something you can buy from amazon.
Basically it is a lamp encased inside a fixture so that when you turn off the lights in your room stars project onto the walls. I came across an idea when looking at shadow art. For example, here's a gallery of cool art.
I want to expand on these ideas. The idea is to have a thing that can take any image input and be able to project the image onto a wall. There are three main parts to this: 1) transforming any image to a shadow form, 2) creating a lattice of small cells that can rotate / contract, 3) controlling the lattice by a program.
Upon further review, I will not be doing this project.