A playful yet mathematically precise icon system built using geometric construction, golden‑ratio proportions, and a unified brand guideline. This project reimagines SpongeBob, Patrick, and Squidward as modern, minimal icons designed for digital branding, motion graphics, and character‑based UI systems. This project explores how beloved cartoon characters can be transformed into a cohesive, scalable icon system through geometry and ratio‑driven design. Each character is distilled into its essential shapes - square, triangle, and circle, then reconstructed using golden‑ratio proportions to achieve balance, harmony, and recognizability. The result is a polished icon family supported by a full brand guideline, including color palettes, grid systems, spacing rules, and usage recommendations.