For one christmas I built my kids nightlights. My son’s was the HSV (featured on this page as well). For my daughter I built a multi coloured star lantern. To start I bought a white paper star lantern from a local store and added an Adafruit ESP32 Feather and two NeoPixel rings. The plastic framework inside comes with the lantern so I simply adapted it to hold the two RGB LED rings and put some little mirror balls in the middle to enhance the sparkle. To control it I used Blynk which works great since I can share the control app with my daughter who has it on her phone.