Ventriloquism

This spell creates an illusory figure, creature or item. The spell either sits on the caster's hands, shoulders, or head, or hovers within a foot of those areas (the spell cannot move further than that from the caster). The spell effect provides animated visuals and sound only, not touch or smell. It allows the caster to give the impression that the spell is speaking either by itself or for the caster. The spell will speak whatever the caster mentally instructs it to speak, but cannot speak at the same time the caster speaks. The spell will last until the end of the caster's turn, but a bonus action can be used next turn to recast the cantrip and the illusion will persist without interruption (until the end of the next turn or another casting of the spell again, and so on). A wisdom save against the caster's spell DC will allow others to realize that the effect is only an illusion.

This spell has been rumored to have been created by a Wizard at the request of a crafty Kenku bard, who used it both as ventriloquist dummy performances as well to assist himself as a tool for general communication with others.