History Main / SignatureDevice

** The Tissue Compression Eliminator served as the Master's signature weapon in the Classic Series, tying in with his nature as ruthless, yet plagued by a cartoonish ComplexityAddiction, thanks to its gimmick of fatally shrinking people down to the size of action figures so that he can leave them as calling cards. The TCE is so thoroughly associated with the Master, in fact, that both the Peter Pratt and Creator/AnthonyAinley incarnations first made themselves known by leaving shrunken corpses lying around for the sake of a WhamShot.

* ''Franchise/AssassinsCreed'': The Assassins will almost always be seen wielding their Hidden Blades, a weapon used since the very inception of the Order. Every non-Assassin who wields one was either gifted the tool, forcibly obtained it from an Assassin (Whether through stealing or as a battle trophy), or happens to be a turncoat from the Order.

%% * The transporter has appeared in every incarnation of ''Franchise/StarTrek''. And almost everyone carries tricorders, communicators, and phasers.

* If you are a Comicbook/{{Green Lantern}}, you will have two elements: the [[IconicOutfit Green Lantern uniform]] and the GreenLanternRing. The latter sometimes ''creates'' the former when you put it on. This was later spun off into an entire spectrum of different-colored Lanterns, all of which have their own rings.

[[quoteright:350:[[Anime/{{PokemonTheSeries}} https://static.tvtropes.org/pmwiki/pub/images/6cc7b01d_e303_4ed8_b4c6_c7f053e7b854.png]]]]
[[caption-width-right:350:What would a [[TheBeastmaster Pokémon trainer]] be without their trusty Pokéballs?]]

** Pokéballs, which are used to catch the titular Pokémon and the Pokédex, which is a digital Pokémon encyclopedia for the Pokémon trainers, or at the very least skilled and/or important ones. Receiving one at the beginning of the game indicates you're now a trainer.

* Every incarnation of ''Anime/YuGiOh'' has a form of Duel Disks, a device worn on the arm that allows the wearer to play Duel Monsters with the full holograms-and-LP-counters trappings no matter where they are. The original introduced them in the Battle City arc, and they proved so convenient that they became ''de rigeur'' for later installments.

* ''Series/DoctorWho'': The sonic screwdriver, first introduced in [[Recap/DoctorWhoS5E6FuryFromTheDeep "Fury from the Deep"]], quickly became the Doctor's go-to trinket in almost all of their incarnations. The only Doctors that lacked the device on-screen were the First and Sixth Doctors -- the former because it didn't exist yet, the latter because the sonic screwdriver was temporarily retired [[Recap/DoctorWhoS19E4TheVisitation midway through his predecessor's run]] before coming back at [[Recap/DoctorWhoTVMTheTVMovie the very end of his successor's]].

* ''Series/DoctorWho'':
** The sonic screwdriver, first introduced in [[Recap/DoctorWhoS5E6FuryFromTheDeep "Fury from the Deep"]], quickly became the Doctor's go-to trinket in almost all of their incarnations. The only Doctors that lacked the device on-screen were the First and Sixth Doctors -- the former because it didn't exist yet, the latter because the sonic screwdriver was temporarily retired [[Recap/DoctorWhoS19E4TheVisitation midway through his predecessor's run]] before coming back at [[Recap/DoctorWhoTVMTheTVMovie the very end of his successor's]].

* From ''Series/DoctorWho'':
** The sonic screwdriver is always used by any iteration of The Doctor.
** The TARDIS is a time machine/living spaceship used almost exclusively by the Time Lords.