methods for creating metallic gradients

Quick answer：

Creating metallic gradients involves using metallic paints or finishes that can be applied to various surfaces like metal, plastic, or glass. Techniques include sponging, layering different colored metallic paints, or using metallic sprays. The gradient effect can be achieved by blending colors from light to dark or vice versa. It is important to apply the paint in thin layers and allow sufficient drying time between coats.