There are decorative lights that can be different colors, but either you have to program it to display the color you want, or there’s a remote with only a few color options. It would be cool to create an interface for such a light that allows users to adjust the quantities of red/green/blue light being output. I’m imagining something with pneumatic “bubbles” that the user can depress to decrease amounts and inflate (some sort of conductive sensor would probably be needed here) to increase amounts. It could also be a useful tool for teaching children about mixing light colors.
