Was sorting through some of the various boxes in the TARDIS, and lookie what I found, one of my old Sonic Screwdrivers! Pretty sure this one was from my 8th incarnation, but don't hold me to that!
Unfortunately, this one doesn't work anymore. Burned out the power cells trying to break through a particularly stubborn set of firewalls on a station in the Rotomoclast System.

Still! Always good to find stuff you thought you lost.