Spiders and witches can throw projectiles at the player when they begin levitating after being hit by an arrow shot from a bow with the Levitation Shot enchantment activated, even though they are stunned while they are floating.

Steps for replication:
1) Equip a bow that has the Levitation Shot enchantment active.
2) Roll once to activate the enchantment and find a spider or witch.
3) As the animation for the spider or witch that indicates it is about to throw a projectile begins, shoot the mob with the bow that has Levitation Shot. The mob should float in the air and throw its projectile at the player while it is stunned.