The following are a list of all the Mythical Things & Weapons on Class of the Titans.
Aphrodite's Love Potion[]

Aphrodite's Love Potion
Aphrodite is capable of creating potions that can be used for love or curing people infected by hate. She is able to fill an empty bottle with a potion that it stated by the infected teens to neither look nor taste pleasing but did return them to their normal personalities.
Hercules's Last Surviving Arrow[]

Hercules's Last Surviving Arrow
Autolycus is called from his time by Cronus to find and steal Hercules's last known arrow, which were soaked with potent lethal Hydra poison in exchange for an apple from the Garden of the Hesperides which would grant him immortality. Autolycus breaks into labs and museums searching for the correct arrow but finding fakes until The Chosen Ones track the real arrow to Theresa's Dad and eventually captured Autolycus. They allow him to return to Cronus with a fake arrow. Autolycus got away with The Golden Apples of Immortality, but was stopped by Hermes before he could consume it.
Eros' Arrows[]

Eros' Arrows
Eros' Arrows are arrows that can inflict either love or hate. The arrows usually cause love but when tainted they can cause people to hate others and/or themselves. They appear to be a never-ending supply emitting from Eros' quiver on his back.
The Cornucopia[]

The Cornucopia
Also called the Horn of Plenty, was a symbol of abundance and nourishment, commonly a large horn-shaped container overflowing with produce, flowers or nuts. The birth and nurturance of the infant Zeus, who had to be hidden from his devouring father Cronus. In the cave on Mount Ida, baby Zeus was cared for and protected by a number of divine attendants, including Amalthea, who fed him her milk. The suckling future King of The Gods had incredible strength, and while playing with Amalthea, accidentally broke off one of her horns, which then had the divine power to provide unending nourishment, as the foster mother had to the god.
It is currently in the possession of Fortuna and is stated to grant one wish to whomever wins the right to use it. Neil's good luck allowed him to win the cornucopia, and he used it to save Zeus from Cronus and obtain gifts for nearly everyone for Christmas, purposely excluding Fortuna for not allowing them to use the cornucopia sooner.