Okay, they are not "anodized," but many still call them that. Has anyone found a product to coat and protect these scabbards that also helps to deepen their lustre in appearance? Some types of oil and grease work well, as far as appearance, but they are messy, attract dust and have to be wiped down occasionally with a new application. Is there a wax or other product that serves the needed purpose without being sticky and not needing frequent re-applications? Thanks in advance.