"A flashy feature that has limited usability for victory."

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* In ''Series/AuctionKings'', Paul has sold many devices that fit these criteria: Gasoline-powered blender? Gasoline-powered pogo-stick? Motorized (and gasoline-powered) barstool? Paul has sold all three.
* The ''[[CoolShip Excalibur]]'' from ''Series/{{Crusade}}'' had the ability to fire a supercharged shot that could kill any ship it faced. Downside? It almost drained the ship, leaving it vulnerable for a minute. A minute in which the destroyed enemy ship's buddies could use to wail on it. They only try to use it as a last resort. Besides, the ship has top-of-the-line armor which absorbs and dissipates something like 80% of incoming energy.
* ''Series/GameOfThrones'':
** Aegon the Conqueror deliberately had the Iron Throne made so it would be both awe-inspiring and uncomfortable to sit on.
** Harrenhal is the greatest fortress in the Seven Kingdoms. It's also a logistical nightmare, practically impossible to man and govern properly, which is why the Lannister troops abandon it, rather than defend it, when the Northern army arrives. Justified for the original builders, since it had the full resources of a small empire behind it; the lands and incomes associated with it now are a tiny fraction of the minimum requirements.
* ''Series/StargateSG1'':
** The [[BoomStick staff weapon]]. It [[BlingOfWar looks great]], it fires [[BangBangBANG loud]] [[PowerGlows bright]] bolts of plasma, the wounds look horrific, it doubles as a melee weapon... but it's also really hard to aim, rarely does damage beyond twenty meters, fires only once a second, and the wounds are self-cauterizing, meaning basic medical care makes them easily survivable. {{Badass}}es who've trained for years such as [[ProudWarriorRaceGuy Teal'c and Master Bra'tac]] can hit a human-sized target at range two times out of three, but Teal'c switches to P90-s in the later seasons. \\
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Made explicit in one episode where O'Neill (with two l's) is training some rebel Jaffa to use P-90s. After an impressive demo comparing the firearm's superiority, he explains "This [the staff weapon] is a weapon of terror. Its purpose is to intimidate the enemy. This [the P-90] is a weapon of war. Its purpose is to ''kill'' your enemy."
** The ship-mounted weapons are the more powerful version of staff weapons by several orders of magnitude (their firepower is in the megaton range). They are also much more precise than their handheld cousins. Presumably, the Ha'taks have some sort of a targetting system. Good luck trying to hit anything in space based on visual aiming alone. Then again, their weapons consistently fail to hit small craft.
** The Death Gliders can fly in space and in atmosphere and their shape is specifically meant to terrify enemies. They're also equipped with more powerful versions of the staff weapons. They also appear to lack any devices present in any modern jet fighter, such as ''targetting systems'' and friend-or-foe recognition. Now imagine humans taking the useful parts of the Death Glider, such as their drives and [[InertialDampening inertial dampers]], replacing the slow-firing and relatively short-range staff cannons with faster-firing railguns and long-range guided missiles, and adding the above-mentioned systems. ''Now'' you got an awesome fighter. Which shows when a single X-302 manages to own a pair of Death Gliders in the space of a second.
** Initially, the SGC trained its prospective recruits by having them contend with a fake foothold[[labelnote:*]]alien take over of the base[[/labelnote]]situation inside the actual Cheyenne Mountain complex. However, this required entire sections of the base to be sealed off every months, disrupting the work of the base staff. General Hammond eventually requested the money to build a dedicated off-world training facility.
* Done often on Series/MythBusters. Driving a car so fast that it can't be caught by a police radar, making a child float by using thousands of balloons, chopping down a tree with a machine gun... the list goes on.
* A large number of wrestling moves are not only ridiculous, but literally impossible if the receiver doesn't put as much work in as the giver. But they ''look'' so cool. Particular examples are:
** TripleH's Pedigree
** The Canadian Destroyer
** The Powerbomb
** The Missile Dropkick
** The Cross Body Block
* ''Series/MightyMorphinPowerRangers'':
** Serpentera: Ostensibly powerful enough to destroy a planet, but it kept running out of power when it came time to actually fight the Power Rangers. Despite being the largest Zord ever in the series, it was hardly effective beyond its first few appearances. The behind-the scenes reason for this was the limited footage of Serpentera available from the original Sentai, where it was an envoy of the Powers That Be that told ''both'' sides to stop upsetting the cosmic balance with their fighting, not a weapon of the villains'.
** The Megazord itself became this from time to time, as it often seemed more practical to split the zords up, either to take on multiple monsters or to flank and overpower an single one. Notably, while fighting Commander Crayfish and the mutant Ranger clones, the clones held Crayfish on their shoulders, leading Billy to say he was out of their weapons range. Never did it occur to anyone to disassemble and let the Pterodactyl Zord (which can '''fly''') attack from above. This became even more apparent any season they had bipedal humanoid zords, such as the Super Zeo Zords, Rescue Zords, or the Shogun Zords, since, being realized via stuntmen in costumes same as the combined Megazord, they were utilized more often than animal or vehicle-style individual zords.
** Later zord combinations got a [[PowerRangersTurbo lot]] [[PowerRangersSamurai bulkier.]] Not only did it make them practically immobile but they always looked like they'd topple over.
* ''Series/RobotWars'':
** Hypno-Disc. The original horizontal flywheel, its weapon was capable of inflicting horrific damage. However, the recoil [[CastFromHitPoints had a tendency to damage Hypno-Disc's internals]] and made it prone to breakdowns.
** Razer, [[TookALevelInBadass prior to Series 5]]. Like Hypno-Disc, its crushing claw was the first of its kind and could dish out some serious damage, plus the machine itself just looked ''breathtaking''. However, it was even more prone to breakdowns than Hypno-Disc and crashed out in the heats three times in a row. Once they'd ironed out the kinks, however, it became TheAce and reached the Grand Final two years running.
** Wheely Big Cheese's entire body was one enormous, four-feet-long flipper, capable of flipping up to ''800kg'' (for reference, when Wheely Big Cheese debuted, the weight limit was ''80''kg). However, it was prone to mechanical problems and only ever worked to its full potential on [[http://www.youtube.com/watch?v=8cvVYzvQQB4#t=160s one memorable occasion]]. It also had poor manoeuvrability, and [[AttackItsWeakPoint two glaring weak spots]] in the form of its exposed wheels, which had a tendency to get smashed off.
** One Series 4 contestant, Saw Point, had two 60cm-diameter saw blades for wheels. Not only did it look awesome as hell, it defeated Oblivion 2 in its first fight simply by driving over the top of it. Of course, saw blades are not great means of locomotion, and Saw Point was easily pushed around or pushed over.
* ''Series/{{Scrubs}}'': [[https://www.youtube.com/watch?v=JpZVdAltIhM Floating Head Doctor.]]
* The original opening sequence to the ''Series/{{Battlestar Galactica|2003}}'' miniseries. It was originally meant to show the Armistice Officer arrive at the station several times at different stages in his career, from a lowly lieutenant to his final rank as colonel. They even cast a young actor to play him, putting him through lots of makeup to show him accurately age over the 40 years. Realistically, this would have stretched the opening to maybe 10 minutes.
* ''Franchise/StarTrek'':
** The bat'leth, while definitely a CoolSword, isn't very practical in a realistic swordfight. For one, the normal stance requires the use of both hands and severely limits the reach. If you grip it in one hand, then you have an unbalanced weapon with no hilt and a ''pointy end'' facing your gut. Made more jarring by the fact that Klingons ''do'' have normal swords, but only one is ever used. Duras uses one in his fight against Worf but loses, as Worf has the advantage of vengeance on his side ([[spoiler:Duras having just killed Worf's girlfriend]]). Also, most fights with the bat'leth show it as a slow, cumbersome weapon that could likely be overcome by a nimble swordsman with a rapier. Additionally, let's not forget that Klingons still use swords in the days of directed-energy weapons. It's even explicitly mentioned that an old lady with a phaser could hold off a dozen Klingon warriors with bat'leths. However, at least one of the novels states that the bat'leth was designed for large close quarters battles in narrow city streets, presumably of similar size to modern starship corridors - so it is possibly [[JustifiedTrope justified]].
** Major Kira described a Starfleet phaser rifle like this (at least in terms of guerrilla warfare). Sure, it's got multiple power settings, gryo-stabilizers, and multiple-target acquisition capabilities - but putting all of that into the weapon means it's much more prone to breakdown in less-than-ideal conditions. She says that the Cardassian disruptor rifle, while [[BoringButPractical simpler and more brutal]] (with just "stun" and "kill" settings), could be dragged through the mud and still fire.
** On ''Series/StarTrekTheNextGeneration'', the ''Enterprise''-D's saucer separation abilities proved to be this. It was ''the'' reason the ''Enterprise''-D was designed the way it was, and it was anticipated to be used regularly, but it was too expensive to do, and on the show, it was used only three times: the pilot episode "Encounter at Farpoint", "The Arsenal of Freedom" (also from season 1), and "The Best of Both Worlds part II" (from season 4), before being used for the last time in ''Film/StarTrekGenerations''.'
*** As a meta example, the ''Enterprise''-D's main shooting model was this as the design of the ''Galaxy''-class starship was done without Industrial Light and Magic's help. By the time ILM got involved, they had a six foot tall behemoth of a shooting model that proved utterly cumbersome to film (especially with the aforementioned saucer section, which made it almost impossible to stabilize right-side-up, thus the preponderance of FX shots being done from a low angle, which allowed them to mount it in a much more stable saucer-down position). This is the main reason why ''Film/StarTrekGenerations'' had the ''Enterprise'' destroyed and replaced with the ''Enterprise''-E for ''Film/StarTrekFirstContact''.
* The [[CoolCar Panthermobile]] from the live action start of the 70s Pink Panther show. It has absolutely jaw dropping lines, but also no windows, no roof for the driver, and my goodness [[http://www.youtube.com/watch?v=bii-PIGprv8 does it fishtail all over the place!]]
* ''Snooki & J-Woww'': Snooki loves her chunky stiletto pumps, perhaps a bit too much. When she's about to leave her pad (mind you, she's ''knocked up'' here) along with J-Woww, she takes a tumble down the steps like she's pounded one too many.
* DiscussedTrope in an episode of ''Series/{{Castle}}'' where the titular mystery writer and his cop friends are shooting the breeze about what the (working class) cops would do if they won the lottery. One of them claims he'd buy a Ferrari, at which point Castle, a millionaire, says he has one and it's actually not as impressive as you'd think. When the cop points out that they're "hella fast", Castle retorts that a Ferrari is just as fast as any other car on the street when it's stuck in rush-hour traffic.
* The titular ''Exo-man''. It gives the wearer enhance strength, immunity to bullets and can withstand a car ramming through it. However, it's slow as turtle on meds and has to fully turn his body to look right and left. Its air supply and operation time are also limited. Not to mention its [[UnfortunateCharacterDesign phallic design]]...
* ''Series/FreshOffTheBoat'' has Shaquille O'Neal sell a line of fancy basketball-shaped vodka bottles. It ''looks'' cool and the basketball motif fits Shaq, but the lack of flat sides makes it a pain in the ass to store properly and you can't even set the bottle down after pouring your drink without it rolling off the table. As Shaq himself admits "ItSeemedLikeAGoodIdeaAtTheTime".
* In ''Series/BetterCallSaul'', we have Daniel Warmolt's new Hummer H2. It's flashy, and chock-full of features that make it quite comfortable to be in, and the bright-yellow-with-red-flames paint job is great at drawing attention. Which is exactly the ''opposite'' of what you want for a vehicle that you will be bringing to a quick and discreet drug deal. Additionally, the fact that it's so expensive immediately makes the cops suspicious when they see it parked in the driveway of his relatively small house. And even the "Awesome" part can be debatable, because other characters see it as gaudy and ugly (Mike calls it a "MidlifeCrisisCar" , while Nacho calls it a "school bus for six-year old pimps").
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