When we replaced the tires on our Jeep, I saved the old tires so I could plant some flowers in them. If that's not country, I don't know what is! :)
A while back David found a big tree in the woods that was hollowed out in the middle. He cut it into smaller sections and we used it as planters for bulbs and sedum to add some visual interest to our beds up next to the house.
A great free way we enhanced our garden was to get plants from our relatives! My grandma, and David's grandma and aunt happily shared with us some of the overflow from their gardens.