Ok, this is a instructable on how to turn old vaccum tubes into a cool looking light source.
Even though title says night light I would be kind of afraid of use them as that because they get really hot and could short out and what not. Also be very careful when working with mains voltages its not deadly but will deliever a very bad shock, and never place vaccum tubes close to anything flamable.
Step 1: Get Some Old Tubes!!!!!!!!!
The first thing you need do is find some old tubes. I would say you can use just about any type of tube I used two old 36am3 rectifier tubes out of an old radio.