Paints, decals, and tools are important supplies for model trains, as they allow modelers to customize and enhance the appearance of their locomotives, rolling stock, and scenery.

Paints are used to add color and detail to models, and are available in a wide range of colors and finishes. Some popular types of paint for model trains include acrylic, enamel, and lacquer, each with its own advantages and drawbacks. Modelers can use paints to match the colors of real-life trains or create custom designs and schemes.

Decals are another way to add detail and customization to models, allowing modelers to add logos, numbers, and other markings to their locomotives and rolling stock. Decals are available in a range of scales and styles, and can be applied using water or decal-setting solution.

Tools are essential for building and maintaining model trains, and include a variety of cutting, shaping, and fastening tools. Some common tools for model railroading include hobby knives, tweezers, pliers, and screwdrivers. Modelers should choose high-quality tools that are durable and precise, and take care to use them safely and effectively.