Hestu's Maracas appear as Hestu's Tier 1 weapons, and are immediately wielded by him during the events of the Scenario "Freeing Korok Forest", where he both is first made playable and is recruited following the completion of the Scenario. Hestu's fighting style revolves around not only beating monsters and the like with the Maracas, but summoning Koroks to his aid with them.
As the Maracas are the default tier of weapons Hestu can use, they will later be outclassed by the Shaka Maracas, which serve as Hestu's Tier 2 weapons, and Shakalaka Maracas, Hestu's Tier 3 weapons.
Hestu's Maracas also primarily serve as the icons for the Battle Support-type Side Quests pertaining to increasing inventory capacity, though one ("A Most Peculiar Korok") allows the ability to see the amount of hidden Korok Seeds there are in all Story Chapter battles and certain Challenge Scenario battles from within the Battle Info screen.