NeoPixel Nano 2020 RGB LEDs - 10-pack [WS2812B] : ID 4684 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
ESP8266 ESP-01 ESP-01S WS2812 RGB LED Controller Module for Arduino IDE WS2812 Light Ring Smart Electronic DIY with Connector: Amazon.com: Industrial & Scientific
LED Stick - 8 x WS2812 5050 RGB LED
Flexible RGB LED Strip (NeoPixel/WS2812/SK6812 compatible) - 144 LED/Metre | The Pi Hut