In the British Sci-fi series Doctor Who, the time traveling Doctor often uses his sonic screwdriver to rescue his companions and save the day. Now you can build your own version that lights up and emits actual sonic vibrations from a high revolution motor cut out of a dollar store sonic toothbrush.
This is a relatively easy weekend project, but does require some drilling, wiring of electronics, and soldering. This project is based around a sonic toothbrush that I found at a discount store for a few bucks. I cracked it open and removed the guts to build my sonic screwdriver around. To get everything else I required, I just needed to head to the hardware store for a pipe and brass pipe fittings to house the battery, switch, and a small electric motor.
The finished build has nice heft and is sturdy enough for cosplay. May it provide many hours helping in your child’s adventures as an intrepid time traveling hero.