The passport challenge sounds like such a fun idea, especially with the added element of curiosity and transportive experiences across cultures. The Adventurous Appetite challenge sounds like it would appeal to many children who love the sense of wonder associated with exploring new foods and cultures.
The space theme is a wonderful mealtime adventure too - an added layer of creativity and imagination that can turn eating into an exciting cosmic experience, especially with some well-chosen decorations! It's inspiring to hear these innovative ways to make food enjoyable and educational.