Some time ago, I wrote about WS2812D, an 8mm RGB LED with built-in controller (WS2811.) However, that LED was killed off after very short run.
Since then, APA Electronics came out with it's own version, APA-106, which is compatible with WS2811.
I have 2 versions available in my store right now, 5mm and 8mm. They are perfect for any breadboarding or through hole project.
I will be using them in updated versions of my clocks (Geek & Gear.)