Rochesterfest organizers today announced the winner of the annual Rochesterfest button design contest.  Nicole Hovick is a local graphics designer and her winning submission depicts a river running through a downtown area.   The design will be used on the Rochesterfest Buttons and on all Rochesterfest literature and advertising for 2014. Hovick won $500 dollars and was presented with a check during an event today at City Hall.