Light Sensing LEDs by Bot1398

Infinity Mirror - Tony Stark Arc-Reactor thing by shadeydave

How to make and use the arduino as an Isp for an ATtiny 4… by TobaTobias

PS/2/You: Go-anywhere, LED digital message board by Earthling!

LED Gingerbread house by NathanWilliams

A Charlieplexed Christmas Tree by lmperkins

Geiger counter triggered LED decorations by nikkipugh

Traffic Light Stoplight LED Scarf - Safety Scarf of Right… by caitlinsdad

Inflatable Teddy Bear/LED Costume/Power Glove by jgulick

3x3x3 LED cube shield by lookwhatjoeysmaking

Magical Colour Copying Chameleon Lamp by fjordcarver

Animatronic Stargate helmet by Honus

Display Live Txts on Costume at Party w/ Scrolling LED Be… by CuriousInventor.com

Arduino-powered A-10 stick grip remote w/Emergency Party … by spikec

Arduino from Scratch - Digital Thermometer by matt.e.jenkins

Building a Daft Punk helmet with programmable LED display by volpin

Control Ikea Dioder LED Strip with Arduino + 16X PWM LED … by CuriousInventor.com

Singing Pumpkins/ Arduino by wirenut1980

3D LED Cube by ScitechWA

Dirt cheap Arduino LED light bar! by ForgerOfPie

8 LED Chaser with 74HC595 8 Bit Shift Register by Dominion-Network

Arduino GPS Datalogger by jonnyboy323

Simple Arduino Traffic Lights by bjarni1995

Make a Mini LED Siren (powered by Arduino!) by juggleboy

Arduino Circular Cylon! by Robot Lover

How to make a string of LED's in parallel for arduino by Goalieguy

Arduino LED Watch by carjo3000

4x4x4 interactive LED-cube with Arduino by kenyer

The Touch module - a robotic dog toy. by rcarney86