Ever hear of a thing called RGB? Red, Green, Blue? How about an RGB LED? These 5mm units have four pins - Cathode is the longest pin. One for each color an
LED - 10mm Cycling RGB (slow) - COM-11452 - SparkFun Electronics
SPARKFUN COM-13999 ] Dual 7-Segment Display - LED (RGB) $6.95 - PicClick
LED - RGB Piranha 5mm (10 pack) - COM-10390 - SparkFun Electronics
COM-09264 SparkFun Electronics
IR Control Kit Hookup Guide Datasheet by SparkFun Electronics
COM-09264 SparkFun
Diffused LED - RGB 10mm - COM-11120 - SparkFun Electronics
COM-09264 SparkFun Electronics
LED - RGB Diffused Common Cathode - COM-09264 - SparkFun Electronics
LED - RGB Diffused Common Cathode (25 pack) from MindKits New Zealand