The items featured in this list do not have enough information to justify an article, mainly due to lack of relevance, but are still notable. (Note: Blue buttons link to separate pages)
Koichi Hirose's luggage, a large suitcase covered in stickers. It notably contains his passport. Giorno Giovanna steals it by turning it into a frog. He's sold Koichi's items except the passport. Koichi retrieves the passport in Giorno's room.
A ladybug brooch about the size of a hand that Giorno always has on his chest. When Bucciarati had to accompany Trish alone to meet Diavolo, Giorno gave life to one of his brooches, planting some of Coco Jumbo's cells and gave it to Bucciarati so that he could plant it on the Boss and follow him. However, a fight ensued and the brooch was used to detect Diavolo during the fight and temporarily imprison him when the brooch transformed into a clone of Coco Jumbo.
Giorno turns one of his brooches into a replacement eye
Giorno turns one of his brooches into a clone of Coco Jumbo, created from the turtle's DNA
A replacement hand Giorno created from his brooch before severing both of his hands
A metal shovel on which is engraved the initialism SPQR ( Senātus Populus que Rōmānus, meaning "The Senate and People of Rome"). Luca uses it as his weapon of choice against Giorno Giovanna, but ends up caving in his own skull when he tries to bash a frog created by Gold Experience and the damage is reflected back at him.
Luca's first appearance with his shovel
Luca become angry, using his shovel to hold Giorno's chin
Luca swinging his shovel, about to attack Giorno
Luca tried to smash a frog
Luca's attack reflected back at himself
Luca yells at Giorno, using his shovel to threaten Giorno
A collection of guns Polpo keeps hidden in his prison cell. Giorno Giovanna turns one of the guns into a banana, which Polpo later tries to eat. The gun reverts into its initial state and he shoots himself in the mouth as a result.
A handgun owned by Guido Mista that he uses in conjunction with his Stand, Sex Pistols. It appears to be a Smith & Wesson Bodyguard Model 638 revolver. He keeps extra bullets in the rim of his hat to reload it. The revolver is equipped with a hammer shroud, contains six bullets in the swing-out style cylinder and is used with hollow-point bullets. The revolver is consistently portrayed as being purple across adaptations.
After being broken by Diavolo, it was replaced by a Beretta M9, taken from a policeman.
The anime adaptation specifies it as being a Smith & Wesson M10 model.
A set of precious jewels Polpo bought with money swindled from Passione. It is worth 600 million yen. Polpo ordered Bruno Bucciarati to hide it, and Bucciarati put the jewels into the walls of a public toilet in Capri. Upon Polpo's death, his treasure was coveted by both Team Bucciarati and Mario Zucchero & Sale. Bucciarati got a hold of the treasure and gave it to Pericolo, earning himself Polpo's former rank of capo.
An ornate key in which is embedded a transparent marble. On the marble is engraved instructions for finding Coco Jumbo in Naples' train station, in which it fits a cavity on the turtle's shell. The key is heavily linked to Mr.President, as it activates the Stand and taking it out of the shell forcibly ejects any living being from the room inside Coco Jumbo. It was placed in Pompeii near the dog mosaic, and Giorno, Fugo and Abbacchio were sent to retrieve it. The assassin Illuso fought them over it, but the trio managed to seize it.
The third assignment from the Boss is written inside the key
A knee-high small-heeled boot worn by Trish Una, first appears in Chapter 486. During the Plane accident, Trish was targeted by a small Notorious B.I.G.. When she drops a glass bottle with water, the water splashes and soaks her right leg's boot, which make Notorious B.I.G target the small drops going down the boot. However, the boot strangely falls off from Trish's leg, and is destroyed and eaten by Notorious B.I.G. Trish then sees her own Stand, Spice Girl, offering her counsel and asking for a command. Trish finally realized her power and defeated Notorious B.I.G., but is never shown on screen getting her boot replaced after the battle.
In the anime, it appears earlier due to Trish's first outfit being skipped.
A floppy disk which was put by Diavolo in the lion statue of Venice's Santa Lucia train station. Team Bucciarati was ordered to retrieve the disk, and Giorno and Mista managed to take it from Ghiaccio's hands. The disk contains the following instructions:
One person will accompany Trish and enter an elevator leading to the top of the only basilisk of the San Giorgio Maggiore island.
That person won't carry any bladed weapon or gun, nor any communication device such as mobile phone.
When the disk is extracted from the statue in which it was hidden, a transmitter will let The Boss know it and the group will have 15 minutes to bring Trish to the island.
Every other remaining squad member will stay on the boat and not set foot on the island.
A photograph of Donatella Una taken in 1985 by a young Diavolo, then named Solido Naso, near a stele in La Costa Smeralda on the island of Sardinia. When he checked the results of Squadra Esecuzioni's investigations of Donatella's room, Diavolo spotted the photograph, which made Diavolo go to Sardinia as he sensed Trish was heading toward the island, thus guiding Team Bucciarati toward a place Moody Blues could investigate. Diavolo subsequently managed to kill Risotto Nero and Leone Abbacchio.
Diavolo can communicate with Doppio through any kind of object while not in control, granting his subordinate the belief that his alter ego is another person altogether. Although we haven't heard the quality of these "calls" yet and whether or not the objects alter the quality of Diavolo's voice, Doppio can always hear his alter ego's voice through the object. Doppio also, on occasion, forgets that he's been able to communicate with Diavolo, but he consistently has never realized he's been using a broken or non-phone object. These "phones" have ranged from ice cream to frogs, to cigarettes to toys, and of course, Doppio always carries on him a broken or dismantled phone headset.
After Leone Abbacchio managed to rewind time near the stela in Donatella Una's photograph, Team Bucciarati retrieved a negative of "Solido Naso"'s face and fingerprints, which they made into a bust and then used to research the Boss's past. Their effort didn't bear any result but caught the attention of Jean Pierre Polnareff who contacted the gang to ally themselves against Diavolo. Strangely, the face on Diavolo's bust resembles Doppio instead.
A fashion magazine poster featuring a woman with short hair and a hat. It appears on the ticket booth near the Colosseum. After getting disoriented by the sound of a car tire bursting, Secco mistakes the poster for Bruno Bucciarati and attacks it.