Deader Than Disco: Toys

If there's anything parents know, it's how kids obsess over the latest thing, then forget about it after a week or so, hence why the Trend Aesop exists.
  • Any number of fad toys. The Eighties had Cabbage Patch Kids, (which lasted through The Nineties and are making a valiant attempt at a resurgence), Teddy Ruxpin, Simon, pocket games that play only one game (such as Pac-Man or Centipede), Pound Puppies, the Snoopy snow cone maker, Strawberry Shortcake, and Rainbow Brite (though those last three are making something of a comeback). In The Nineties, it was Tamagotchi note , Furby, Tickle-Me-Elmo, Beanie Babies, pogs ("tazos" in Mexico, Australia and other countries)... the list is ever-growing. Anyone who grew up at the time that any one of these were popular has probably witnessed the popularity arc go from "niche item that only a few people have heard of" to "waiting in line for half a day just to get one, then seeing people fight in the store over the remaining stock" to "finding a bunch of well-worn ones for 50 cents at Goodwill".
  • Home chemistry sets and other science kits, thanks to a combination of perceived dangers to life and limb and the Wars on Terror and Drugs. The Gabriel and Skillcraft sets were highly acclaimed for being equipped with everything a budding young chemist needs: scaled-down chemical glassware (real Pyrex), apparatus, and a host of chemicals used by real chemists. As a bonus, you could order from their catalogs for even more items. However, due to perceived safety concerns and fear of lawsuits from angry parents, test tubes and beakers are now plastic; there are no alcohol burners; chemicals are now mostly limited to vinegar, table salt, table sugar, and other "safe" household items that are expected to already be on hand, and experiments are limited to simple, boring reactions such as color changes.
    On top of that, there is a fear among police and various public safety groups and advocates that chemistry sets can be used to manufacture explosives and methamphetamines. (Breaking Bad has likely done little to help with the latter image.) Thanks to this, there have been a number of highly publicized police raids into the homes of what were nothing more than chemistry hobbyists, and suppliers became very leery about selling their products to anybody other than schools and laboratories. Some states, such as Texas, have even gone as far as requiring a government permit for the possession of just chemistry glassware.
  • Hobby telescopes: These are often sold in toy stores, department stores and novelty stores, and they are usually priced anywhere from $49.99 to $99.99. With a little research, any budding amateur astronomer will instantly realize that the only good telescope is a telescope that you purchase from a dedicated and reputable science vendor. They are more expensive but if one is serious about the hobby, it's worth the investment.
  • Cartoon/toy-line tie-ins: These are now considered strictly a relic of The Eighties. Transformers, G.I. Joe, Voltron, Masters of the Universe, and many others had popular cartoon shows that were arguably just advertisements for the toylines. Strict government regulations against child-targeted commercial advertising saw the end of this sort of marketing. Today, toys based on these older franchises are targeted toward nostalgic adults and are priced accordingly. Transformers, however, seems to have survived and is still going strong.
  • Any toys that resemble real-life firearms or weapons. Drug and/or gang wars of The Eighties and onward involved a lot of gun-play, and city kids who brandished realistic fake weapons risked being shot for real by criminals, police officers, or both. To safeguard kids, toy guns now are brightly colored (black is disappearing), usually have a tell-all orange tip barrel, represent no commonly available firearms, and can't be easily painted to resemble real guns — they look more like fantasy / Sci-Fi weapons. Usually, their appearance is also out of proportion with real guns so they can be spotted at first glance. Cap guns, meanwhile, have vanished due to the public's tendency to mistake their noise for real gunshots. Water guns like Super Soakers, however, are still very popular, largely because nobody could confuse them for real guns.
    • The only "toy" guns still sold today that resemble real weapons are BB rifles, which get by on the Grandfather Clause (the Daisy Red Ryder BB gun was famously featured in A Christmas Story, after all), and Airsoft guns, which are often very expensive and marketed strictly to hobbyists and the like. And even in those cases, nearly half of all US states regulate their sale and use.
  • Toy soldiers based on any historical war. Back in the days of World War II, the US Military were undoubtedly the rough 'n' ready good guys fighting valiantly for liberty and justice against the evil Nazi Germany regime. With the onset of The Vietnam War and especially The War on Terror, we began seeing more shades of gray, such as innocent people on "the other side" suffering as a result of the wars, the American Gonvernment making some objectively boneheaded decisions, and fathers who served in the wars either dying or coming home crippled. It more-or-less became clear that War Is Hell and not the kind of thing we want our kids glorifying.
    • This can be seen easily with G.I. Joe. The original figures were explicitly designed as American infantrymen, but after Vietnam, the line shifted focus to adventure stories or battling absurd supervillains, largely jettisoning anything that could associated with an actual war. It's hard to imagine, for instance, Snake-Eyes in Afghanistan.
  • Bratz dolls. When they first came out at the Turn of the Millennium, the fashion dolls were hugely popular in a way no prior Barbie rival had ever been, and very controversial due to their "slutty" appearance for characters who were supposed to be teenagers. Now thanks to said controversy dying out, several failed retools and spinoffs, its Live-Action Adaptation being considered one of the worst movies of all time, a lengthy hiatus due to legal issues, and the rise of doll lines such as Monster High that feature Loads and Loads of Characters with truly distinctive personalities and strong World Building, the Bratz franchise is struggling to stay afloat and is virtually dead. There's a good chance most toy-buying kids aren't aware the line still exists, or even existed.
    • Even Moxie Girlz, created by the same company to replace it, isn't doing too well and now exists mainly as a Lighter and Softer budget line.