AI Engineer Paris 2025, held at Station F on September 23-24, was a dynamic event that gathered builders, researchers, and practitioners to explore the future of applied AI. Koyeb showcased an innovative photo booth demo at their booth, designed to highlight their platform's capabilities while engaging attendees in a fun and interactive way. The booth allowed visitors to take photos with props generated by AI, where participants wrote an object on a piece of paper, and an AI agent swapped the paper with the desired object in the photo using a combination of image-editing models. Built in just three days, the demo utilized Koyeb's GPU Instances and fast deployments, relying on models for image description, prompt generation, and editing. The experience emphasized creativity, the importance of tool selection, and the power of interactive demos to create memorable impressions, leaving attendees with both a smile and a printed photo.