I like Kylash idea of a "sonic multi-tool." The concept reminds me somewhat of the Voyagers! Omni. I never cared that an Omni could transport through time and space, but when the fob watch with Chameleon Arch technology was revealed, I always thought it would be an interesting plot device if the fob watch worked similar to the Omni and could transport the Doctor back to the TARDIS console room in an emergency. An interesting feature would also be to serve as a TARDIS key with the ability to cloak the TARDIS similar to what occurred with the Second Doctor in Invasion.
However, I agree such a tool should not be overly multi-function, or perhaps not be as reliable for tech, for (as Starganderfish indicated) the Doctor responding as the OG MacGyver is part of the enduring character we all love.
However, I agree such a tool should not be overly multi-function, or perhaps not be as reliable for tech, for (as Starganderfish indicated) the Doctor responding as the OG MacGyver is part of the enduring character we all love.
