Your Banner — AI Rooftop Selfie filter

The customizable one: whatever you type gets hoisted on a skyline banner next to you. Birthday wishes, apologies, announcements, inside jokes — if it fits on fabric, it flies over the city. The filter renders the text into the banner with real material behavior, wind distortion and all, so the message reads as manufactured and hung rather than typed on a screen. It's a greeting card format with the production budget of a marketing stunt.