In addition to the weapons every ninja carries, some ninjas have taken on personalized weapons with which they have developed special skills.
Generally these will be actual physical manifestations of weapons in some form, rather than elemental attacks created by jutsu such as mud or fire.

Nunchaku

Gai's Nunchaku

Gai carries along a set of nunchaku on his missions. When battles move in close, Gai can withdraw these weapons to deal direct damage to his opponent.

Piercing and Cutting Hand-Held Weapons

Asuma's Knuckle Knives

These deadly knives belong to the Leaf Jounin Asuma. The combination of brass knuckles and knife prove a deadly weapon to any foe Asuma faces. Asuma can also extend his chakra through the metal of the blade and out the end using his Hien technique. This causes the blade to lengthen with an added chakra edge. This hidden danger can act as a surprise to enemies who misjudge the distance they will need to maneuver to avoid the deadly blades.

GamaBunta's Daggers

The toad boss Gamabunta carries two personal daggers. Giant in size, these daggers can be utilized by either Gamabunta or any powerful ninja who can lift and maneuver their weight.

Hanzaki's Zanbatou

Fuuma Hanzaki carries this large Zanbatou long sword.

Hatake Family Tanto

This tanto belonged to Kakashi's father Hatake Sakumo, who was known as "Konoha's White Fang." Using the blade, the unique white chakra will pour forth from Kakashi and his father.

Hayate's Sword

This katana is utilized by the Leaf ninja Gekko Hayate. Using this blade, Hayate does the Dance of the Crescent Moon technique. This is an advanced technique that creates multiple copies of the user while the real version attacks from the opponents blindside.

Hidan's 3-Bladed Scythe

Akatsuki member Hidan uses a large three-bladed scythe which he can throw at his opponents. Using a rope running from his arm to the scythe itself, he can launch the whole thing to give him added versatility. This may be due to his reputed slower attack speed among the group.

Idate's Knife

Idate was given this knife by Boss Jirocho of the Tea Country. He gave it to Idate as a sign of trust in the young man in his new position as his subordinate.

Kakkou's Retractable Wrist Blades

Stone ninja Kakkou has retractable wrist blades attached to his forearms. These blades can spring forth when needed to surprise any opponent he fights hand to hand.

Kamakiri's Scissor Pinchers

Kamakiri lives up to his "praying mantis" name by utilizing a pair of scissor-like pinchers. These pinchers can be squeezed to pinch and slice through any opponent.

Kimimaro's Bone Swords

Because of his unique Bloodline ability, the Sound ninja Kimimaro can remove bones from his body at will. After removing the bone, the sword is then created. Because the removed bone can become harder than steel, this sword can become a very reliable weapon.

Kotetsu's Giant Kunai

Kotetsu carries two large kunai on his back. Kotetsu can work in tandem with Kamizuki Izumo to wield both with deadly results.

Kotetsu's Shell Mace

Kotetsu has a large mace with a spiked conch-type shell head. Due to its size Kotetsu keeps the mace in an easily accessible summoning scroll until needed.

Kujaku's Two Soushouken (Dual Rising Blades)

Craftsman kunoichi Kujaku wields two blades crafted in her home village. These two swords can redirect wind attacks and bring out their maximum potential using a minimum amount of chakra. With these blades she can also generate wind-based attacks.

Kumo-Nenkin Spikes

Utilizing his body's ability to create kumo-nenkin (golden spider thread) from both his pores and his mouth, Kidoumaru uses the thread to fashion weapons that are as hard as metal. With the thread he can make spikes and daggers to hurl at an enemy.

Kurosuki Raiga's Swords

Raiga's swords are used in conjunction with his lightning jutsu. Raiga can build up an electric charge in his swords which he can then fire at his opponents. He can also charge the swords, ram them into the ground and then send out tendrils of lightning.

Kusanagi (Grasscutter)

The legendary sword Kusanagi is the personal weapon of the Sannin Orochimaru. When unneeded the sword is kept within Orochimaru's body. When he wishes to utilize it, he will open his mouth wide and have it extend from his chest cavity through his throat.

Mahiru's Sword

Stone ninja Mahiru served as an advanced recon soldier. He carried this sword on his missions into enemy territory.

Momochi Zabuza's Head Cleaving Sword

This long head cleaving sword was the primary weapon of Momochi Zabuza. Zabuza gained this weapon by being a member of the Mist Seven swordsmen, an elite ninja squad of Hidden Mist village. When Zabuza fled his village, he brought this sword along with him. This sword was eventually obtained by former Mist ninja Suigetsu, who trained in the hopes of one day becoming a Mist Seven member.

Nidaime's Raijin Sword

The legendary Raijin (God of Lightning) sword belonged to the Second Hokage. After his death, it remained in Konoha as a legendary artifact. Leaf ninja Aoi convinced Idate to steal the sword. Aoi then took the weapon to Hidden Rain and defected to their village.

Oni Brothers

The Oni (Demon) Brothers are missing-nins from Hidden Mist Village. The two brothers wear large clawed devices on one of their hands. Running between the claws connecting the brothers is a edged chain that can cut anyone who gets near it. The brothers work in a formation where one brother will launch the other into the air and surprise their opponent, while flying through the air the brother can wrap the chain around an opponent. Pulling the chain taught, the brothers can then shred their victim to pieces. The brothers aren't limited to the restriction of the chain either, they can disconnect the chain and just use the poision soaked claws to attack an opponent.

Ryuugan's Gariantou (Garian Blade)

Craftsman ninja Ryuugan wields a blade crafted in his home village. This sword has three blade made up of segments pieces connected via wire. These segments respond to user's chakra to extend in the form of dragons that can bite.

Samehada (Sharkskin)

This long head cleaving sword was the primary weapon of Hoshigaki Kisame. This sword resembles Zabuza's sword except that along the length of the blade are shark skin scales which serve to rip the flesh from the victim it is turned against. Kisame gained this weapon by being a member of the Mist Seven swordsmen, an elite ninja squad of Hidden Mist village. When Kisame fled his village, he brought this sword along with him.

Samurai Sword

These swords are wielded by the mercenary samurai Waraji and Zouri.

Sasuke's Kusanagi (Grass Cutter)

Studying under Orochimaru, Sasuke began using his own Kusanagi (Grass Cutter). Using this sword with his Chidori Nagashi technique, Sasuke was able to greatly increase its' cutting ability. Virtually nothing could stop this blade when it sought its target.

Yondaime's "Flying Thunder God" Kunai

Yondaime Hokage would mark kunai and other weapons with a rite, which allowed him to transport across time and space to its location. This specific kunai was given to Hatake Kakashi on his advancement to Jounin, it was marked with such a rite.

Ranged Weapons

Dosu's Sound Amplifier

The Sound Genin Dosu wears a sound amplifying device on his right arm. This weapon vibrates at such a range so as to disrupt the inner ear membrane of his target. This can result in extreme disorientation and dizziness.

Fubuki's Ice Bombs

Fubuki has attached wings to her chakra armor. As she flies above her opponent, she will unleash these ice bombs attached to kunai. Then the kunai impact her target, the bombs will explode in a torrent of ice spikes. These rising ice is powerful enough to lift several tons off the ground.

Haku's Flying Water Needles

Created using a secret jutsu unique to Haku, the deadly flying needles are created from any nearby water Haku can find. Once created, Haku can control the needles through chakra and force of will. The needles can float into the air and come raining down on an opponent at Haku's command.

Kimimaro's Finger Bullets

Because of his unique Bloodline ability, the Sound ninja Kimimaro can remove bones from his body at will. With this technique, Kimimaro can literally turn his fingers into projectile launchers. Aiming his fingers at his opponent he can launch his distal phalange bones as bullets.

Kin's Bells

Though they resemble normal bells, this weapon of the Sound ninja Kin possesses unique qualites. As an attack, Kin will launch needles that have wire and a bell attached. Using the wire, Kin can shake the needle and cause the bell to vibrate. These bells emit a special frequency that then causes the inner ear of her target to vibrate, resulting in hallucinations.

Kumo-Nenkin Bow and Arrows

Utilizing his body's ability to create kumo-nenkin (golden spider thread)from both his pores and his mouth, Kidoumaru uses the thread to fashion weapons that are as hard as metal. With the thread he can make a large bow with which to fire his kumo-nenkin arrows.

Mizore's Chakra Armor Hand

Snow ninja Mizore has augmented his chakra armor will a large clawed hand. This hand can detatch and be shot at his opponents to grab ahold of them. It can also fire out a sticky rope to tie up his enemy.

Mizuki's Giant Shuriken

The Leaf Chuunin Mizuki utilized these giant shuriken after he convinced Naruto to steal the forbidden jutsu scroll. These large shuriken are hurled by the user at an opponent, their large size increasing the damage they inflict as they fly through the air.

Mubi's Crossbow

Rain ninja Mubi carries a four bolt crossbow. This crossbow can fire normal arrows, flaming arrows or grappling arrows.

Naruto's Summoned Giant Shuriken

In the second part of the Naruto series, Naruto carries a summoning scroll holding a giant shuriken. Storing weapons in summoning scrolls allows Naruto to carry more weapons into combat and not hinder his freedom of movement.

Shikamaru's Light Bombs

Shikamaru depends on light to be able to utilize his Kage Mane jutsu. In situations where he needs more light to cast a longer shadow, he will use these light bombs. They are marked with "hikari" meaning light.

Shizune's Needle Launcher

Hidden on her right forearm, Shizune has a needle launcher which she can use to send poison tipped needles at her opponent. After lifting her sleeve she can pull the launch cable taught and then let it loose, which will launch the five poison tipped needles towards her target.

Tayuya's Flute

This flute is used by the Sound ninja Tayuya. The flute allows her to control the Doki she summons, she can also use the flute to cast illusion spells to confuse her opponent.

TenTen's Summoned Weapons

Though she does not appear to carry many weapons, TenTen uses several scrolls containing many weapons she can throw with deadly accuracy. By being able to summon kunai, shuriken and other edged weapons whenever she wants, TenTen can pose a serious problem to any enemy she faces. These weapons include such things as Bakuretsu no Yaiba (Exploding Blades), which is a spiked bomb which explodes blades upon impact.

Temari's Kyodai Sensu (Gigantic Fan)

Temari carries this large fan on her back. When needed, the fan can unfold and create a large cyclonic wind. Temari is able to imbue her chakra into the wind, which allows her to hold the victim as the wind slices them to pieces.
Temari also utilizes her fan when she wishes to summon. She unfolds her fan, spreads her blood on the fan and with a quick swing her summon arrives in the air to carry out a slicing attack with the wind.

Uchiha Clan Sharingan Windmill Triple Blade

A unique technique to the Uchiha clan, the Sharingan Windmill Triple Blade utilizes multiple large shuriken with wire attached. Hurled through the air the clan member can control the direction of the shuriken to have it encircle the opponent with the wire to restrain them. Having the upper hand, the clan member can then attack the restrained opponent with another ranged jutsu. In Sasuke's case, he used this technique in conjunction with a fire technique, incinerating his opponent.

Zaku's Air Vents

The Sound Genin Zaku has had his arms modified to contain air vents. When used in conjunction with jutsu techniques, Zaku can control supersonic waves and air pressure. This allows him to release massive gusts of air at his opponent. The gust is so strong that it can even destroy rock.

Staff And Spears

Chouza's Staff

Akimichi Chouza has the ability to alter the size of his body at will. Chouza utilizes a personal staff weapon that has the ability to grow in size as he does.

Enma Kongou-Nyo Form

Elder Monkey Enma, one of the personal summons of the Third Hokage, has the ability to transform into a Kongou-Nyo (diamond hard staff) weapon. In this form he can extend himself to varying lengths. While in the staff form he can also partially transform back into his normal form, allowing him to open an eye to view the situation or extend an arm to grapple with a foe.

Kimimaro's Flowering Spear

After attaining his level two cursed seal form, Kimimaro can create a large flowering spear on his forearm. It is said this spear can pierce any enemy shield.

Whips

Kimimaro's Spinal Vine Whip

After attaining his level two cursed seal form, Kimimaro removes his spinal column. He then extends it to form a long spiked vine whip that has the ability to flex and bend around his target.