Earlier this year I had the perfect excuse to experiment with some flexible LED filaments that had been sitting in my “interesting parts” bin for years -- the company I work for was putting on a neon-themed event, so obviously I had to custom-build some LED neon attire! The only problem was this was announced less than a week in advance.... This is how I designed and assembled a wearable neon shirt in just a few days. Your browser does not support the video tag. A rough parts list, in case you want to try something similar: Led filament Lots of colors and lengths available. I recommend Adafruit - you’ll pay a bit more than AliExpress, but it’s convenient and they do a lot of great open source work so I’m always happy to support them! 2x 600mm warm white 12v 3x 300mm red 3v 1x 1200mm red 24v Electronics USB battery bank ESP32 Some way to step up/control the voltage for the LEDs Boost converter Constant-current led boost driver e.g. TPS61169 ULN2003A transistor array ...