Usb Led

 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

 scissoirs
pliers
soldering iron
knife
solder
e-tape

820 ohm resistor(grey,red,brown)
LED
usb lead(male)

 cut the led and resistor legs short. make sure you know which is positive and negative on the led!

 solder the resistor to the positive leg of the led.

 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.

 solder the resistor to the red and the negative of the led to the black.

wrap the whole thing in tape apart from part of the usb and the led

 plug in and bing! zap! pretty light