Gradient Sphere & Cube Pack Design Prompts for Clean Vector Stickers

Create a collection of clean vector designs focusing on gradient spheres and cubes, presented as high-contrast, flat images with no shading or gradients. Use placeholders like [sphere_shape], [cube_types], or [color_variant] to customize each prompt for different geometric styles, ensuring the final artwork is crisp, bold, and perfect for die-cut sticker production on a pure white background.