Bought a screwdriver from Ebay that turned out to be very small, (not the one from china) for a few bucks and decided to build a better casing for it. I took inspiration from the War Doctor's sonic. It emits a sound effect but I need to replace the buzzer as it doesn't produce enough sound to be audible through the screwdriver (even with the additional holes drilled into the handle. Shown here next to my 11th/12th Doctor Sonic.