Using a wire brush to deepen the grain before you apply any stain is a great way to mimic the look of wood that has been sitting in the sun for decades. I often use a mix of steel wool and vinegar to create a natural gray wash that reacts with the tannins in the wood for an authentic aged appearance. This method works especially well on pine or spruce, turning a cheap hardware store board into something that looks like a vintage crate from a secret underground facility. If you then stencil on a faded team logo using thin acrylic paint, the result is much more convincing than a modern vinyl sticker. The goal is to make the item look like it has been part of the environment for years