NeoPixel Ring - 24 x 5050 RGBW LEDs w/ Integrated Drivers [Natural White - ~4500K] : ID 2862 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: Adafruit 100226 24 RGB Neopixel LED Ring with Integrated Drivers : Electronics
NeoPixel 1/4 60 Ring - 5050 RGB LED w/ Integrated Drivers : ID 1768 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits