Prosopopoeia (pro-so-po-PEE-ah) used to be something every student did. It involved channeling the voice and character of great historical or literary figures, often in different settings. A great way to use it today: have Martin Luther King debate Jeb Bush in inequality. Or Thomas Jefferson argue about climate change. Or Chris Rock explain to King George III why British policy in the colonies isn't working.
See this video for more.