the only way i could advocate someone playing cornhole at a wedding would be if they were going to make it all pretty and custom to match their wedding. maybe even use quilt fabric to make the bags?
[honestly i would have nothing against it, but last night my neighbors kept me up all night playing cornhole in the middle of the road.]
anyway, yay for having fun with games at a wedding! a friend of mine was married last weekend and they had TONS of hula hoops for their guests to play with at the reception..