From ArborWiki

Mr. Coleman Jewett, purveyor of furniture & humorous signs at the Farmer's Market. A life-long Ann Arbor resident, his family has been in the city for generations -- in fact, Jewett Road is named after his family.

Recent sign: Free cat with $200 purchase. Two cats with $100 purchase.

There's an article about Mr. Jewett's experiences at Jones Elementary on The Communicator: http://the-communicator.org/index.php/site/article/changing_for_the_future_remembering_the_past/

Michael Jewett is a personality on WCBN.