Electrical tape- Any kind will do as long as it is an insulator.
LED- Any color or size. I used a 10mm RGB (Red, green, blue)
Wall Wart/ Power supply- This is really important. Make sure you have one that supplies the correct voltage and amperage. I used an old one I found in my basement.
Input: AC 120v~60 Hz 4W
Wire Cutters and Strippers
I used my MAKE: Warranty Voider - Leatherman "Squirt" E4 (electronics version)
Pocket multitool. (BTW this is the best Mulitool I have ever owned!!!) Its the best!