Plug directly into the GPIO pins of a Raspberry Pi
The Monk Makes Squid RGB LED for Raspberry Pi is a bright RGB (Red, Green, Blue) LED with built-in resistors and female header leads that can just plug directly into the GPIO pins of a Raspberry Pi.
Definitely worth the money in terms of the hassle of wiring one of these up, code on GitHub is very clean and easy to use. Don't think about it anymore, buy one