i was messing with some leds the other day when i found that it would be brilliant to not worry about wasting the batteries using a led so i made this
Step 1: Things You Will Need
820 ohm resistor(grey,red,brown)
Step 2: Cut Em Short
cut the led and resistor legs short. make sure you know which is positive and negative on the led!
Step 3: Solder
solder the resistor to the positive leg of the led.
Step 4: Kill the Usbted
cut and slice and get frustrated with the usb until it comes open then strip the black and red wires and cut the others off.
Step 5: Solder 2f the Led
solder the resistor to the red and the negative of the led to the black.
Step 6: Wrappin'
wrap the whole thing in tape apart from part of the usb and the led
Step 7: All Done
plug in and bing! zap! pretty light