Rebekah at IntimateWeddings.com has a wonderful article and accompanying photos specifically about barn wedding games and guest activities but they look like they’d be fun for any outdoor reception, no matter the theme or venue.
Horseshoes, hay rides, tug of war, bobbing for apples, parachute games, and corn hole are all wonderful ways to entertain guests and make your reception a fun and memorable time.
Read more at: http://www.intimateweddings.com/blog/barn-wedding-games/