This is a very simple version of the Eggcellent Night Light!. If you haven't seen this instructable, I'd suggest that you take a look at it. I actually wanted to make it, but didn't have the patience. So I found an easier way to make one. Check this out!
(1) Roll of electrical tape
(1) LED, I used a 3.5V - 4V one
(1) 3V watch battery, I used Energizer 2032
(1) Film cannister
Scissors or knife to cut tape because the stuff wont rip...
skewer or chop stick
Note: Make sure your LED is diffused, otherwise your night light will have a brighter top than base. You can buy them diffused already, but if it isn't already, just use some of that frost that comes in a can. If you use frost, be sure not to spray it on the (+) or (-) ends of the LED.