WS2812 Addressable RGB LED Stick Module - ProtoSupplies
Amazon.com: BTF-LIGHTING WS2812B RGB 5050SMD Individual Addressable 16.4FT 60Pixels/m 300Pixels Flexible Black PCB LED Pixel Strip Dream Color IP30 Non-Waterproof Making LED Screen for Wall DC5V : Tools & Home Improvement
NeoPixel Jewel - 7 x 5050 RGB LED with Integrated Drivers : ID 2226 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits