What weapon did the Cyclopes give Zeus during the Titanomachy?

The Cyclopes gave Zeus his thunderbolt during the Titanomachy.

These were the primordial Cyclopes—Brontes, Steropes, and Arges—not the later Cyclops encountered by Odysseus. They were one-eyed sons of Uranus and Gaia and were famed as powerful craftsmen. In the succession myth, Zeus freed them from imprisonment, and they rewarded him by making or giving him the thunderbolt, along with thunder and lightning.

The weapon became Zeus’s defining symbol and his most fearsome instrument in the war against Cronus and the Titans. With it, he struck the opposing forces while the Hecatoncheires hurled massive stones. The combined support of the Cyclopes and Hundred-Handers helped the Olympians win control of the cosmos.

The other famous divine weapons belong to Zeus’s brothers: the Cyclopes gave Poseidon a trident and Hades a helmet of invisibility. The aegis is instead a protective shield or breastplate associated with Zeus and Athena, while the Helm of Darkness belongs to Hades. Later Greek and Roman traditions also connect Cyclopean smiths with Hephaestus.