Paint a large sheet or canvas with a western scene. The scene can be mountains, a desert, wild horses, or a western town. Position this mural behind the stage to cover the entire set area. Making several back drops and connecting them will allow for scene variation.
Using the split-rail fence pieces, construct two fence corners on either side of the stage near the back. Hammer nails along the fence and hang cowboy hats, ropes and saddle blankets on them.
Nail the wagon wheels to the split-rail fence. Position the straw bales on either side of the wagon wheels. Place the cowboy boots on top of the straw bales.
Draw three trees, the largest being 6 foot, on plywood. Carefully cut the shapes out using a power saw. Paint details on the plywood. Construct support braces for the trees using 2-by-4 borads. Attach two braces to the backside of the trees using metal brackets and screws. Check that the braces hold the trees securely in place. Position the trees between the fence pieces.
Trace the shapes of birds, clouds and a sun on the Styrofoam board. Carefully cut out the shapes using a knife. Paint details on the front and back of the shapes. Suspend these props from the rafters using fishing line.
Add the round hay bale to one side for a variation in height.
Follow manufacturers instructions to attach wheel kits to the bottom of the whiskey barrels. These will serve as static props and can be used for a variety of scenes.