A piece of equipment created from bits and pieces of a large creature. This can include teeth, claws, bones in general, hides and coats, whole appendages, chitin from Big Creepy-Crawlies, organs, and generally anything that can be cut off and utilized. The reasons for doing this can vary: it can be a matter of convenience, because the body part in question has properties not easily replicated by other means, or just a means of showing off.
Possession of such things tends to be shorthand for "badass hunter", since Fridge Logic dictates that the character most likely had to kill the creature in question to get the requisite materials. Claws and teeth also tend to be Absurdly Sharp Blades, to emphasize the ferocity of the previous owners, or at least justify their continued usage in place of more "advanced" weapons.
The creation of such equipment has become prominent in video games, as well, particularly the RPG genre. If the player isn't capable of crafting the gear themselves, it's not uncommon to find an NPC who can do the job in their stead... of course, they need 20 Bear Asses for materials.
Truth in Television: before metalworking, bones were a common choice for tool materials, and hides provide a lot of mileage in terms of insulation and warmth.
Since bones are a common choice for this trope, there's a lot of overlap with Bad with the Bone, Ballistic Bone or Skeletons in the Coat Closet. The runner-up, fur, generally leads to Pelts of the Barbarian, Fur Bikini, and/or Nemean Skinning. If the body is used as a weapon without it being taken apart first, that's Grievous Harm with a Body. If used ornamentally, it can also overlap with Battle Trophy. See also Item Crafting and Organ Drops.
- Having the fame of fighting a wild bear and not just surviving, also killing the animal with his fists, Mamoru Takamura from Hajime no Ippo usually should appears with the skin and head of that bear as a cape previous of his fights, also showing the scar of the bear clawing in his chest.
- InuYasha's sword the Tetsuaiga was forged from the fang of his Youkai father and later reforged with his own fang when the sword is broken by the Oni Goshinki. His Aloof Older Brother Sesshomaru's Healing Shiv the Tenseiga is also made from the cast off of the Tetsuaiga while his Evil Weapon the Tokijin is made from the fangs of the very same oni. Similarly Sango's Battle Boomerang the Hiraikotsu is made from the bones of purified youkai.
- In Naruto the villainous and terminally ill leader of the Sound Five Kimimaro can pull the bones from his body to instantly shape harder then steel weapons.
- Being the barbarian he is, Conan the Barbarian in all his appearances in media (comic books, movies, tabletop games, video games, etc.) usually wears animal skins and parts into his costume, included a fur loincloth and a necklace made of teeth.
- The Swarm of War has Orks outfitting themselves with armor and weapons made out of Zerg bones. The Ork leader is actually called Warboss Bugklaw.
- Ice Age 3: Dawn of the Dinosaurs has Buck's knife, which was created from the tooth of Rudy, a gigantic dinosaur. Unlike several other instances of this trope, Rudy was no worse for wear for not having the tooth.
- In How to Train Your Dragon: The Hidden World, Hiccup and the others all wear armor made from their dragon's scales, allowing them to walk through fire.
- In Greek Mythology Heracles famously slew the Nemean Lion and wore its rock-hard pelt as armor.
- Nac Mac Feegles from Discworld books make plenty of gear from animal parts, but since they are wee people they make use of small animals; rabbit skulls are used as helmets, mouse leather is used for bagpipes etc.
- In Dune the Fremen's traditional crysknives are carved from Sandworm teeth.
- Often appears in Redwall, and used for disturbing effect considering that it takes place in a World of Funny Animals. There are a few villains in the series with clothing, armor, or weapons made from parts of animals they've allegedly killed, such as Cluny the Scourge and his cloak made from bat wings, and Urgan Nagru and his wolf pelt, with the skull intact.
- The Heroes of Olympus: After Annabeth loses her bronze dagger in Tartarus, she travels unarmed for a while until she receives a dagger made of drakon bone from Damasen.
- Dungeons & Dragons: In most editions, dragon hide is a standard material for armor, it usually provides some form of elemental resistance.
- 1st Edition Monster Manual. The large plates behind a bulette's head can be made into shields of up to plus three power by a skilled dwarven craftsman.
- Dragon magazine
- #62 has "Evil dragon armors", an article on making armor out of dragon scales. Each type has specific abilities based on the dragon it's made from.
- The #98 article "The Magic of Dragon Teeth", which has dragon teeth made into magical devices that could summon "dragon men" when planted in the earth.
- Module WG5 Mordenkainen's Fantastic Adventure. The whip possessed by the iron golem is made out of cockatrice feathers. It retains the cockatrice's ability to petrify any creature it hits.
- Dark Sun setting. Because of the shortage of metal, bones were often made into weapons.
- Fifth Edition Lizardfolk all have a skill that allows them to make weapons and shields out of body parts during an (hour long) short rest. Given that a shield can sell for 10 gold, this can actually be a very fast way for low level characters to earn a pile of money.
- In Baldur's Gate the shells (exoskeletons) of ankheg monsters can be made into armor.
- In Dragon Age: Origins, there are several sets of armor that can be made from drake scales and dragon scales by Wade.
- The Elder Scrolls:
- Traditional Bosmer (Wood Elf) weaponry and clothing tends to be made at least in part from animals, due to the Green Pact preventing them from harvesting plants within Valenwood. (Leather armor, bone weapons, sinew bow strings, etc.)
- Bonemold armor is made by gluing layers of bone with resin, serving as medium armor in Morrowind. In-universe legends hold that it was invented at the request of a Lord who needed armor that was light enough for his servants to wear while they fetched water in drought conditions, but heavy enough to protect them from groups of roving cannibals. Morrowind also has "Troll Bone" armor, which as the name implies, is basically the skull and ribcage of a troll fitted with cloth which allows them to be worn as a helmet and cuirass, respectively.
- In Skyrim, parts from slain dragons can be used to craft some of the best armour in the game. Their bones can be made into heavy "Dragonplate" armor and their skin can be made into light "Dragonscale" armor.
- Elsword has a lot of weapons and occasionally armors made/taken from the bosses' body. The Secret Dungeon Bonus Bosses in particular tend to either drop the special equipments themselves (rarely), or drop the materials you'd need to craft the equipment (more commonly).
- In the 2013 Killer Instinct game, Chief Thunder returns from the first game with large feathers in his head and a necklace made of teeth, probably from wild animals like wolves, bears, etc. This trope becomes more literal with his alternate costumes, having helmets with heads of a bear, a wolf, a skull of an animal and even in one costume, his axes are sharped bones attached to a stone and a stick.
- Animals in Minecraft frequently drop resources such as leather, wool, feathers or ink sacs that can be crafted into more stuff. Thus, any gear the player obtains through these materials qualifies for this trope.
- Monster Hunter is this - the game. You are a hunter tasked with killing monsters, using their body parts to build and upgrade armor and weapons, and use them to hunt even stronger monsters.
- There are quite a lot of armor and weapons made from monsters in RuneScape
- Most ranged armor is crafted from the hides of animals such as dragons.
- Some low level magic armors are also made from monster parts.
- Noxious weapons are made from the body parts of a giant spider boss.
- Drygore weapons are made from parts of the Kalphite King.
- In Pokémon, Skarmory's Pokédex entries mention that in the past people used to use their shed feathers as swords.
- Sword Art Online Abridged: Kirito's new sword is forged from a material that can only be obtained from a high-level boss, and even then only if a high-level blacksmith is in the party. The material turns out to be crystallized dragon turds. Lizbeth is suitably squicked at handling it, but Kirito reminds her it's all virtual, and she's wearing (virtual) gloves anyway.
- The first clothing was made of materials such as animal hide, and in modern times people still wear clothing made from animals in the form of fur coats and leather.