City Heartbeat Skyline Tshirt Pods

Create clean, modern, and print-ready city pride graphics with this minimalist heartbeat skyline prompt bundle. This prompt is designed to generate stylish black-background t-shirt designs featuring a white ECG heartbeat line that transforms into a simple city skyline silhouette. Perfect for Print on Demand products such as t-shirts, hoodies, mugs, stickers, posters, tote bags, and souvenir merchandise. The style is minimal, urban, high-contrast, and easy to adapt for different US cities.