Diffused RGB (tri-color) LED [Common Anode] : ID 159 : $2.00 : Adafruit Industries, Unique & fun DIY electronics and kits
100pcs 5mm RGB Multicolor Fast Blinking LED Diode, Multi Color Changing 2 Pin Super Bright Light Emitting LED Diodes Clear Round Lens Flicker LED - - Amazon.com
Source Tricolor LED Light Multicolor Flicker 3mm RGB Slow Flashing Led diode on m.alibaba.com