The user can create various items with no flaws, much like Enhanced Crafting. However, where forging mostly relies on raw material, this ability relies specifically on technological advancements. The user is capable of creating powerful scientific devices, gadgets, and weapons that are capable of mass destruction.
Ooboshi Ringo (Choujin Koukousei-tachi wa Isekai demo Yoyuu de Ikinuku you desu!)
Bulma (Dragon Ball series)
Dr. Gero/Android 20 (Dragon Ball)
Hotaru Imai (Gakuen Alice); via her Invention Alice
Ajuka Beelzebub (Highschool DxD)
God of the Bible (Highschool DxD)
Azazel (Highschool DxD)
Satanael (Highschool DxD/Slash Dog)
Tabane Shinonono (Infinite Stratos)
Mei Hatsume (My Hero Academia)
Bibimi Kenranzaki (My Hero Academia)
Go Hou Mei (Kingdom)
Usopp (One Piece)
Franky (One Piece)
Dr. Vegapunk (One Piece)
Child Emperor (One-Punch Man)
Sandalphon (Seven Heavenly Virtues)
Kululu (Sgt. Frog)
Washu Hakubi (Tenchi Muyo!)
Weisz Steiner (Edens Zero)
Hermit (Edens Zero)
Amado (Boruto: Naruto Next Generations)
Winifred Burkle (Angel)
Skylar Adams (Alphas)
Warren Mears (Buffy the Vampire Slayer)
The Doctor (Doctor Who)
The Professor (Gilligan's Island)
Micah Sanders (Heroes)
Freddie Benson (iCarly)
Oliver Cates (Mentors)
Tabby (Monster Warriors)
Harley Diaz (Stuck in the Middle)
Quinn Pensky (Zoey 101)
Doc Brown (Back to the Future)
Abraham Whistler (Blade)
Bruce (Hotel for Dogs)
Lewis Robinson (Meet the Robinsons)
Dr. Cockroach (Monsters vs Aliens)
Edwad Bailey (Red 2)
Shuri (Marvel Cinematic Universe)
Anakin Skywalker/Darth Vader (Star Wars)
Tinker fairies (Disney Fairies)
Hiro Hamada (Big Hero 6)
Flik (A Bug's Life)
John Kramer (Saw series)
Walter Beckett (Spy in Disguise)
Lucca (Chrono Trigger)
Andy (Heart of Darkness)
Cid Highwind (Compilation of Final Fantasy VII)
Dr. Catherine Halsey (Halo)
Zeke Dunbar (Infamous)
Keira (Jak and Daxter)
Tali'Zorah nar Rayya (Mass Effect)
Niles Van Roekel (Marvel Nemesis: Rise of the Imperfects)
Ratchet (Ratchet & Clank)
Quint Cetcham (Resident Evil: Revelations)
Tinker Knight (Shovel Knight)
Count Moneybone (Skylanders)
Dr. Krankcase (Skylanders)
Bentley (Sly Cooper)
Miu Iruma (Danganronpa V3)
Miles "Tails" Prower (Sonic the Hedgehog)
Doctor Eggman (Sonic the Hedgehog)
Walker Sloan (Spider-Man: Edge of Time)
Professor E. Gadd (Super Mario)
Mechanic (Valkyrie Crusade)
Charles Beckendorf (Percy Jackson and the Olympians)
Leo Valdez (The Heroes of Olympus)
Nyssa (The Heroes of Olympus)
Jake Mason (The Heroes of Olympus)
Harley (The Heroes of Olympus)
Children of Hephaestus (Percy Jackson and the Olympians/The Heroes of Olympus)
Cesix Mikklo (Mikklo Omniverse!)
Hephaestus (Greek Mythology)
Q (James Bond)
Foaly (Artemis Fowl)
Violet Baudelaire (Lemony Snicket’s A Series of Unfortunate Events)
Geniuses (Genius: The Transgression)
Men Of Stone (Warhammer 40,000)
Having spent years studying ghosts, Jack and Maddie Fenton (Danny Phantom) have created a vast arsenal of anti-ghost equipment designed for fighting, capturing, and disposing of ghosts.
While he may not have inherited the ability to create webbing of his own when he got his Spider powers, Peter Parker/Spider-Man (Marvel Comics) invented his own artificial webbing, along with web-shooters to utilize it.
The Ultra-Robots (Samurai Jack) were six machines designed by Exdor as the ultimate assassins to hunt down and destroy Jack.
Pearl (Steven Universe) is well versed in engineering, being able to understand, build and repair technology ranging from human-tech to gem-tech.
Peridot (Steven Universe), being a technical expert on homeworld, is well-versed in building and understanding highly advanced technology.
Gwen (Sofia the First)
Gadget Hackwrench (Chip 'n Dale: Rescue Rangers)
Donatello (Teenage Mutant Ninja Turtles)
Tinker fairies (Disney Fairies)
Lisa Loud (The Loud House)
Johnathan Rook (Stretch Armstrong and the Flex Fighters) as...
Hugo A-Go-Go (Batfink)
Dr. Drakken (Kim Possible)
Wade Load (Kim Possible)
Phineas Flynn and Ferb Fletcher (Phineas and Ferb)
Kirio Hikifune (Bleach) was the inventor of the "artificial soul".
Mayuri Kurotsuchi (Bleach) is one of Soul Society's greatest inventors, though part of it is because of his lack of ethics.
Urahara Kisuke (Bleach) is the greatest inventor of Soul Society, surpassing even Mayuri.
Ooboshi Ringo (Choujin Koukousei-tachi wa Isekai demo Yoyuu de Ikinuku you desu!) is the greatest inventor in the world.
Dr. Gero (Dragon Ball Z) is a genius scientist who managed to invent perpetual motion machines and engineer the ultimate life form.
Bulma (Dragon Ball Series) is one of the smartest mortals in existence; her future counterpart was one of the few beings to have ever invented a functional time machine.
Dr. Vegapunk (One Piece) is the greatest scientific genius in the world whose inventions are 500 years ahead of their time.
Franky (One Piece) is a genius engineer who has invented unique and powerful devices and weaponry.
Usopp (One Piece) is extremely creative and resourceful in inventing gadgets.
Washu Hakubi (Tenchi Muyo!)
Possibly the greatest in B.C. era of the Warring States, Go Hou Mei (Kingdom) is extremely impressive engineer...
...as he designed a siege tower, which utilized a weight and lever system, that was specifically created for the height of Kankoku Pass' walls...
...and siege crossbows that can fire 4 meters long bolts.
Hajime Nagumo (Arifureta Sekai Saikyou) is an extraordinarily talented firearms designer and engineer, using scientific knowledge and creativity to re purpose his magic and alchemy to invent technomagical firearms, artillery, devices and machinery.
The Underworld's greatest mathematician and physicist, Ajuka Beelzebub (Highschool DxD) is a genius Devil inventor who created the Demonification Evil Pieces technology.
The leading expert in Sacred Gear research, Azazel (Highschool DxD) is a technomagical inventor who developed numerous inventions for Sacred Gear developement and creating Artificial Sacred Gear.