Looking to get some ideas for alternatives to Sponsorship Passports.
Traditional Passports are given to conference attendee and typically once they visit each sponsorship booth, they collect a stamp. Once their passport is full and complete, they hand it in to go into a draw to win a prize.
Looking for more of a non-traditional approach to this to keep it interesting. For example last year I had delegates collect a lego piece at each sponsor table. They then had to build something from the lego and that was their ballot entry.