The concept was to cover a ball with over 300 LEDs, add a camera and microphone, and enable it to change colors like a chameleon based on its surroundings. This turned out to be an incredibly fun yet time-consuming project, especially since I underestimated the time required for soldering all the LEDs, I spend hours on this haha. I've programmed all sorts of effects right now (rainbow, random lights, sound reaction). It's all done with Python on a Raspberry Pi (version 3 in this case). I made everything open source; designs are here: Thingiverse (https://www.thingiverse.com/thing:6514809) and the code can be found here: GitHub (https://github.com/Timvdv/discoball). Promoting these things is not really my forte, so if you want something else, more info, or more pictures, just let me know!