Ava Greene, 1, of Edison, makes her way through bales of hay in the Ronald McDonald House corn maze at Von Thun Farms in the Monmouth Junction section of South Brunswick on Sept. 22.  SCOTT FRIEDMAN Ava Greene, 1, of Edison, makes her way through bales of hay in the Ronald McDonald House corn maze at Von Thun Farms in the Monmouth Junction section of South Brunswick on Sept. 22. SCOTT FRIEDMAN