This instructable will show you how to easily build a USB Powered Mystic Light using readily available and inexpensive parts. Not only is this easy to make but its fun to experiment with and create interesting variations. The last step of the instructable will show another great looking variation that can be made without the crystal. You can see the light in operation here and here.
You will need to get the following parts for the electronics for the USB Powered Mystic Light (don't worry there's nothing sophisticated here), the parts for the base of the light (lots of opportunity for you to experiment with different parts), and lastly the "mystic" component that brings the whole project together. I've also listed the tools you'll need so you can have everything ready when you start the assembly.
1. 5mm Red Blue Green Color Changing LED. You probably won't find these in your local electronics store. If you search on eBay for "5mm led rainbow rgb" you'll find them. They cost approximately $13 for 100.
2. Resistor: 82 ohms, 1/4 watt. Color bands: Gray-Red-Black.
3. USB cable with a male type A connector on one end.
4. Thin wire.
5. Heat Shrink Tubing (1/8" and 1/4" diameter) or Electrical Tape.
Light Base Parts
1. Copper pipe fitting with 1" and 1 3/4" ends.
2. #14 Cork (1" diameter on the small end and 1 1/4" diameter on the large end)
3. 1/2" Nut - (1/2" diameter center, 3/4" outer diameter)
1. Clear Quartz Crystal with bottom diameter no larger than 3/4" - I got mine for $10 at a gem shop in San Francisco.
1. Soldering iron and solder.
2. Wire cutters/strippers.
3. Heat gun or similar (optional) if you're using heat shrink tubing.
4. Small metal file.
6. Drill with a 1/4" drill bit.
7. Box cutter or X-Acto Knife