Think Geek Hacks Contest Entry - ReUse a Health Potion Bottle

Step 6: Assemble light

First solder wires to switch, make sure to get a good connection to the leads. Then solder the resistor to the LED. This is a bit more tricky to get soldered, you might want to try and use a third and or some type of clamp. Next, solder the LED to Switch. Then Finally, solder the battery leads to the resistor and the switch.