LEDs: LEDs are cheap, easy and versatile, and best of all, they make light. They can be used for just about any application that requires lighting (and some things that don't). In fact, LEDs come in an array of different sizes, shapes, colors and intensit…
Electronic Tic-Tac-Toe With RGB LEDs - Instructables
PC Front Panel LEDs - Instructables
HEXA LEDs - Bluetooth Controlled Glowing Hexagons : 17 Steps (with Pictures) - Instructables
Making an LED Night Light W/ Star Pattern : 8 Steps (with Pictures) - Instructables
The Barack O Lantern- Pumpkin Powered Political Statement (With LEDs) - Instructables
Multiple LEDs & Breadboards : 5 Steps - Instructables
Self-Contained 7x7x7 LED Cube : 26 Steps (with Pictures) - Instructables
13 Ideas for Diffusing LEDs : 13 Steps (with Pictures) - Instructables
A Sunrise and Sunset Lamp With LEDs : 7 Steps (with Pictures) - Instructables
LED Multiplexing 101: 6 and 16 RGB LEDs With Just an Arduino : 7 Steps (with Pictures) - Instructables