Step 1: Parts list
1. A classic Star Trek phaser - around$25 on eBay.
2. A BlinkM smart LED - made by ThinkM and available from many sources. I got mine from the Maker Shed Store for $12.95
3. An Arduino controller if you do not have one to program the BlinkM. I got the Arduino Diecimila from the Maker Shed Store for $40.
A 2-pin wire connector with leads, like you would find on a PC fan power lead.
Hot glue gun
Shrink tubing or electrical tape
Step 2: Step 1: Program the BlinkM
Step 3: Step 2: Prep the phaser
There are two small thread pads that you will need to file down, as we will be pressing the barrel cap back onto the body. Looking into the cap, there are two screws holding the thing together. Place a glob of hot glue on each screw head to prevent any short circuits with the BlinkM. Lastly, clip off the two metal tabs that made contact with the bulb.