Each autumn, corn mazes all over the country come up with unique themes, but none have ever continued a theme from one state to the next.

Dan-D Farms south of Knoxville is connecting with Wayside Farm Fun in Berryville, Va., to “launch” an Angry Bird from the East Coast farm’s giant slingshot and have it “land” in Iowa, where it will attempt to obliterate the evil pigs. Each maze pictures part of this process.
 
Angry Birds is a popular video game...