A subscription icon that resembles a puzzle piece with a subtle glow effect, symbolizing the idea of fitting together to form a complete picture, ideal for a subscription-based puzzle game or educational platform.

An illustration of a subscription icon in the shape of a cloud with a smiling face, conveying a sense of friendliness and approachability, perfect for a subscription service that offers cloud-based storage solutions.

A modern and sleek subscription icon featuring a stylized letter "S" with a subtle gradient effect and a minimalist design, suitable for use on a subscription-based e-commerce website.