What did Zeus guardians use to muffle his cries as a baby?

To muffle Zeus's cries as a baby, his guardians, the nymphs, used a combination of a great, loud fire and a special type of drum. They created noise to disguise his sounds from Cronus, Zeus's father, who had a habit of swallowing his children to prevent them from overthrowing him. This clever tactic helped protect Zeus until he grew strong enough to challenge Cronus.