Refined the Look of the Mark 2 Screwdriver. Replaced the trigger switch and emitter head. For some reason though the batteries don't last very long in the screwdriver. Maybe it's got something to do with the metal .

The Mark 3 is a Modified River Song Sonic Screwdriver. It was missing the cover for the neural relay so I didn't consider it a collectible. Pretty much removed the activation switch, the translucent tube and user recognition ring and replaced it with the activation switch from The Master's Laser Screwdriver. With my hands the recognition ring was too small and the activation switch was in an awkward spot.