I made one out of a smashed light bulb as a teenager so I could use it to power a fluorescent tube assembly that just had flying leads. Worked great! My PVC electrical tape job must have held up. I was also renting, and was afraid to alter the house, but wanted all the wiring on the roof and controlled by the light switch rather than just use an outlet. Needless to say I wouldn't go about it the same way now.