Customizing the exterior of a used vending machine is possible and can make it stand out. Evaluate the condition, budget, legal requirements, and target audience before starting. Customize using methods like vinyl wrapping, painting, decals, stickers, LED lights, and branding. Benefits include enhanced visual appeal, branding opportunities, standing out from competitors, and increased customer engagement. Consider drawbacks like cost, limited resale value, maintenance, and potential damage. Be aware of legal considerations and consult professionals like vending machine specialists, graphic designers, vinyl wrap installers, and painters. DIY tips include cleaning, choosing the right materials, designing an eye-catching layout, and careful application. After customization, maintain and protect the machine to preserve its appearance.