If you have any old tires laying around your place then this project is perfect for you. Economical and whimsical, all you need is a fresh coat of paint, some pallet boards and a feed sack to really make sure that your planter works properly. First, paint the tires and allow them to dry. Then use pallet boards to hold in place a feed or flour sack. This will allow the water to drain through, assuring that your plants live for a long time to come.