I bought a small blue strip light off of Ebay that came with just two wires attached, no power source included. It was six bucks. I cut the top off of a 12v dc charger and wired it to a rocker switch and mounted it on a small homemade box that held the light inside. Worked like a charm. Just make sure you use direct current and you should be good. Wiring a rocker switch is easy, just tie, wire nut and black tape the neutrals together, then take both hots and attach them to the two screws inside the rocker switch. Close it up, plug it in and flick it on and off. If it works you did it right, if it doesn't try again. I'm pretty sure a phone charger is DC so just clip the attachment that plugs directly in your phone off, then strip off about a quarter inch of the wires. That should be about a three foot stretch from your plug to where your rocker switch is. The light will connect to the other side and should have about 2 ft. of wire connected to it. Rocker switches are cheap, old phone chargers are useless and the light mechanism is about six bucks, so with ten bucks and about ten minutes of work you can set your night light up. I do it all the time, necessity is the mother of invention. Make sure you church it up real nice though, nothing is sadder than when something functions but still looks like crap. Show some follow though and keep it tight, there are two steps, creating it then streamlining it. Craftmanship is everything, details details details. Good luck.