The most memorable cases from the events (e.g., from the Web Summit)

Hi Product Hunters! What about some reflection and sharing cases (booths, pitches, special events. etc.) from the exhibition which impressed you the most? Something you suppose to remember forever and would like to repeat if you'd have a chance to grab most of the visitors' attention. I'll be the first: This year was my first time at the Web Summit Rio, and I'll never forget the stand where an amiable guy treated me to some super tasty local sweeties. Also, I attended a Gaming Conference this month where you could play a Pac-Man on a giant LED screen, which brought all the attendees into unbelievable excitement, leading to the long queues to the attraction :D Ending up with another Web Summit case, I've heard that last year at the Web Summit Lisbon, you could visit a free event where David Guetta and Armin van Buuren played. It was sponsored by one of the partners and available to all the attendees. Isn't that fantastic, huh? And what about your most exciting event experiences?