Finlay Hogan is a young Australian man who faked an American accent to make this Vsauce parody video last year. It's pretty funny and I feel certain Michael Stevens, Vsauce himself, would laugh.
Here's another one, from 2014, from a different guy. His name is Jack Douglass and his video has over 4M views:
Previously: Vsauce went to Peru to experience ayahuasca