Creating A PCB In Everything: KiCad, Part 3 | Hackaday
The Single USB RGB LED | Photons, Electrons, and Dirt
Led rings
Homemade Hardware
Homemade Hardware
Grove - RGB LED Stick (10 - WS2813 Mini) - Seeed Wiki
NeoPixel Mini 3535 RGB LEDs w/ Integrated Driver Chip - Black [Pack of 10] : ID 2686 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
20pcs 5050 RGB LED SMD Ultra Bright Light Diode Lamp