Finding a case for your latest project is often a challenge. I am always on the lookout for a non standard case that could be re purposed into an electronic project case. I think my fish tank lights is about the best example I have of what I have done when there wasn’t a proper project case available. For another great example of using what is available for a project box have a look at this Binary Clock that was designed to fit inside a Power Supply Brick. It is based on the popular PIC 16F628A microcontroller, row / column addressing was done to allow the microcontroller to control all of the LEDs. If you are interested in building your own just ask for the code here and it will be emailed to you.